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A wakesurfing boat and a hull for a wakesurfing boat. The hull includes a bottom having a preselected length extending from a bow to a stern. The bottom includes a central ridge and port and starboard ridges extending below respective port and starboard bulwarks to define a substantially M-shaped bo

A wakesurfing boat and a hull for a wakesurfing boat. The hull includes a bottom having a preselected length extending from a bow to a stern. The bottom includes a central ridge and port and starboard ridges extending below respective port and starboard bulwarks to define a substantially M-shaped bottom with concave portions to port and starboard of the central ridge. Port and starboard sponsons extend below the port and starboard bulwarks proximate the stern. A trim wedge projects below the stern. Two rounded stern portions are provided proximate the stern. In a dynamic surfing mode, with selectively-fillable ballast tanks partially or fully flooded, water flowing through the port and starboard concave portions, combined with the ballast, increases resistance to the hull, resulting in a larger wake wave. Water passing around the structural features proximate the stern is directed toward a convergent zone in the wake, resulting in an improved wake wave shape.

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1. A wakesurfing boat comprising: a hull comprising a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow t

1. A wakesurfing boat comprising: a hull comprising a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross section, with port and starboard concave portions between the substantially central ridge and the respective port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull to the substantially planar bottom portion; andport and starboard lateral sponsons extending beneath the port and starboard bulwarks proximate the stern; anda ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively receive ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty, the hull has a first trim angle and a second waterline, the hull displacing a first amount of water, and a first amount of water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a third waterline, higher on the bulwarks than the second waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of water, greater than the first amount of water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance greater than the first amount of water resistance;a deck; andat least one propeller. 2. The wakesurfing boat of claim 1, wherein a length to beam ratio (L/B) of the hull is less than 3.0. 3. The wakesurfing boat of claim 1, wherein the hull is configured such that when the hull is moving in the dynamic surfing mode, interference with flow of water below the bottom of the hull, directs the water beneath the hull to a convergent zone in the wake of the boat. 4. The wakesurfing boat of claim 1, further comprising a first generally rounded stern portion. 5. The wakesurfing boat of claim 4, further comprising a second generally rounded stern portion. 6. The wakesurfing boat of claim 1, wherein the ballast tanks comprise a plurality of sets of tanks, the sets of tanks being positioned at generally symmetrical locations with respect to one another on the hull. 7. The wakesurfing boat of claim 1, wherein when the hull moves through the body of water in the cruising mode, the hull generates at least one wake wave having a first height and a first shape. 8. The wakesurfing boat of claim 7, wherein when the hull moves through the body of water in the dynamic surfing mode, as a result of the increased ballast, the increased amount of displaced water, the second amount of water passing through the port and starboard concave portions of the generally M-shaped bottom, the second greater amount of water resistance to the hull, and the water passing past the lateral sponsons, the hull generates at least one wake wave having a second height that is greater than the first height, and a second shape. 9. A hull for a wakesurfing boat, the hull comprising: a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross section with port and starboard concave portions between the substantially central ridge and the port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the first waterline to the substantially planar bottom portion; andport and starboard lateral sponsons extending beneath the port and starboard bulwarks proximate the stern; anda ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively receive ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty, the hull has a first trim angle and a second waterline, the hull displacing a first amount of water, and a first amount of water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom, and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a third waterline, higher on the bulwarks than the second waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of water, greater than the first amount of water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom, and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance greater than the first amount of water resistance. 10. The hull of claim 9, wherein a length to beam ratio (L/B) of the hull is less than 3.0. 11. The hull of claim 9, wherein when the bottom is configured such that when the hull is moving in the dynamic surfing mode, interference with flow of water below the bottom of the hull directs the water beneath the hull to a converging zone in the wake of the hull. 12. The hull of claim 9, further comprising a first generally rounded stern portion. 13. The hull of claim 12, further comprising a second generally rounded stern portion. 14. The hull of claim 12, wherein when the hull moves through the body of water in the cruising mode, the hull generates at least one wake wave having a first height and a first shape. 15. The hull of claim 14, wherein when the hull moves through the body of water in the dynamic surfing mode, as a result of the increased ballast, the increased amount of displaced water, the second amount of water passing through the port and starboard concave portions of the generally M-shaped bottom, the second greater amount of water resistance to the hull, and the water passing past the sponsons, the hull generates at least one wake wave having a second height that is greater than the first height, and a second shape. 16. The hull of claim 9, wherein the length L is a length selected from the group consisting of the length of a yacht, the length of a cruiser, and the length of a sport boat. 17. The hull of claim 9, wherein the port and starboard concave portions are configured to at least partially prevent air from entering under the bow. 18. The wakesurfing boat of claim 1, wherein the length L is a length selected from the group consisting of the length of a yacht, the length of a cruiser, and the length of a sport boat. 19. A hull for a wakesurfing boat, the hull comprising: a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross section with port and starboard concave portions between the substantially central ridge and the port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull to the substantially planar bottom portion;a trim wedge extending below the stern, and extending forward toward the substantially planar portion;a first rounded stern portion fixed to the trim wedge aft of the trim wedge;a second rounded stern portion; anda ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively receive ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty, the hull has a first trim angle and a second waterline, the hull displacing a first amount of water, and a first amount of water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom, and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance;wherein the port and starboard concave portions are configured to at least partially prevent air from entering under the bow; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a third waterline, higher on the bulwarks than the second waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of water, greater than the first amount of water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom, and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance greater than the first amount of water resistance; andwherein the trim wedge, and the first and second stern rounded portions, are each configured to direct water into a convergent zone in the wake of the hull. 20. A wakesurfing boat comprising: a hull comprising a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross-section, with port and starboard concave portions between these substantially central ridge and of the respective port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull to the substantially planar bottom portion; anda trim wedge extending below the stern, and extending forward toward the substantially planar portion;a ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively received ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty the hull has a first trim angle and a second waterline, the hull displacing a first amount of displaced water, and a first amount of surface water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a second waterline higher on the bulwarks than the first waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of surface water, greater than the first amount of surface water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance, greater than the first amount of water resistance;a deck; andat least one propeller. 21. A wakesurfing boat comprising: a hull comprising a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern; andport and starboard ridges proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross-section, with port and starboard concave portions between these substantially central ridge and of the respective port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull;a ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively received ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty the hull has a first trim angle and a second waterline, the hull displacing a first amount of displaced water, and a first amount of surface water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a second waterline higher on the bulwarks than the first waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of surface water, greater than the first amount of surface water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance, greater than the first amount of water resistance;a deck; andat least one propeller;wherein the M-shaped bottom is configured to direct water beneath the hull to a convergent zone in the wake of the hull. 22. The wakesurfing boat of claim 21, wherein the M-shaped hull is further configured to at least partially prevent air from entering under the bow. 23. A hull for a wakesurfing boat, the hull comprising: a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross section with port and starboard concave portions between the substantially central ridge and the port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull; anda ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively receive ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty, the hull has a first trim angle and a second waterline, the hull displacing a first amount of water, and a first amount of water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom, and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a second waterline, higher on the bulwarks than the first waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of surface water, greater than the first amount of surface water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom, and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance greater than the first amount of water resistance;wherein the M-shaped bottom is configured to direct water into a convergent zone in the wake of the hull. 24. The hull of claim 23, wherein the M-shaped bottom is further configured to at least partially prevent air from entering under the bow. 25. A method of generating a wakesurfing wave, comprising: utilizing a wakesurfing boat, the boat comprising:a hull comprising a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross section, with port and starboard concave portions between the substantially central ridge and the respective port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull to the substantially planar bottom portion;port and starboard lateral sponsons extending beneath the port and starboard bulwarks proximate the stern; anda trim wedge extending below the stern, and extending forward toward the substantially planar portion;a ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively receive ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty, the hull has a first trim angle and a second waterline, the hull displacing a first amount of water, and a first amount of water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance, generating a first wake wave; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a third waterline, higher on the bulwarks than the second waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of water, greater than the first amount of water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance greater than the first amount of water resistance;a deck; andat least one propeller;wherein the generally M-shaped bottom, the lateral sponsons and the trim wedge direct water beneath the hull to a convergent zone in the wake of the hull which, combined with the increased second amount of displaced water and the increased second amount of water resistance, generate a second wake wave larger than the first wake wave; andoperating the boat in the dynamic surfing mode. 26. A method of generating a wakesurfing wave, comprising: utilizing a wakesurfing boat, the boat comprising:a hull comprising a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross section, with port and starboard concave portions between the substantially central ridge and the respective port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull to the substantially planar bottom portion;port and starboard lateral sponsons extending beneath the port and starboard bulwarks proximate the stern; anda ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively receive ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty, the hull has a first trim angle and a second waterline, the hull displacing a first amount of water, and a first amount of water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance, generating a first wake wave; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a third waterline, higher on the bulwarks than the second waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of water, greater than the first amount of water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance greater than the first amount of water resistance;a deck; andat least one propeller;wherein the generally M-shaped bottom, and the lateral sponsons direct water beneath the hull to a convergent zone in the wake of the hull which, combined with the increased second amount of displaced water and the increased second amount of water resistance, generate a second wake wave larger than the first wake wave; andoperating the boat in the dynamic surfing mode. 27. A method of generating a wakesurfing wave, comprising: utilizing a wakesurfing boat, the boat comprising:a hull comprising a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross section, with port and starboard concave portions between the substantially central ridge and the respective port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull to the substantially planar bottom portion; anda trim wedge extending below the stern, and extending forward toward the substantially planar portion;a ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively receive ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty, the hull has a first trim angle and a second waterline, the hull displacing a first amount of water, and a first amount of water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance, generating a first wake wave; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a third waterline, higher on the bulwarks than the second waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of water, greater than the first amount of water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance greater than the first amount of water resistance;a deck; andat least one propeller;wherein the generally M-shaped bottom, and the trim wedge direct water beneath the hull to a convergent zone in the wake of the hull which, combined with the increased second amount of displaced water and the increased second amount of water resistance, generate a second wake wave larger than the first wake wave; andoperating the boat in the dynamic surfing mode. 28. A method of generating a wakesurfing wave, comprising: utilizing a wakesurfing boat, the boat comprising:a hull comprising a bow, a stern, a center of gravity CG, a port bulwark, a starboard bulwark, a length L, a beam B, a first waterline defined on the bulwarks when the hull is at rest in a body of water, and a bottom extending for a preselected length from the bow to the stern, the bottom comprising:a substantially central ridge extending a first depth below the hull proximate the bow, the substantially central ridge extending along the length at progressively decreasing depths below the hull to a substantially planar bottom portion midway between the bow and the stern;port and starboard ridges extending second depths below the hull proximate the respective port and starboard bulwarks, defining with the substantially central ridge a generally M-shaped cross section, with port and starboard concave portions between the substantially central ridge and the respective port and starboard ridges, the port and starboard ridges extending at progressively decreasing depths below the hull; anda ballast system supported by the hull comprising a plurality of ballast tanks and a ballast watering system, the ballast tanks configured and positioned in the hull to selectively receive ballast water to trim the hull, while moving through the water, in one of at least two operating modes, the at least two operating modes including:a cruising mode, wherein the ballast tanks are substantially empty, the hull has a first trim angle and a second waterline, the hull displacing a first amount of water, and a first amount of water entering openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a first amount of water resistance, generating a first wake wave; anda dynamic surfing mode, wherein the ballast tanks are at least partially filled or filled with ballast water, the hull has a second trim angle and a third waterline, higher on the bulwarks than the second waterline, the hull displacing a second amount of displaced water greater than the first amount of displaced water, and a second amount of water, greater than the first amount of water, entering the openings at the bow of the port and starboard concave portions of the generally M-shaped bottom and traversing the length in the port and starboard concave portions, combining to subject the hull to a second amount of water resistance greater than the first amount of water resistance;a deck; andat least one propeller;wherein the generally M-shaped bottom, and the trim wedge direct water beneath the hull to a convergent zone in the wake of the hull which, combined with the increased second amount of displaced water and the increased second amount of water resistance, generate a second wake wave larger than the first wake wave; andoperating the boat in the dynamic surfing mode.