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An adjustable fin insert assembly is disclosed for mounting on a cavity of a wake board, and includes a fin box positionable in the cavity of the board. The fin box is elongate and includes a longitudinal slot which extends into the fin box from a lower surface thereof. The assembly includes a fin m

An adjustable fin insert assembly is disclosed for mounting on a cavity of a wake board, and includes a fin box positionable in the cavity of the board. The fin box is elongate and includes a longitudinal slot which extends into the fin box from a lower surface thereof. The assembly includes a fin member removably mountable on the fin box adjacent the slot with a portion of the fin member extending into and being slidable along the slot for permitting adjustment of a position of the fin member in the slot. The assembly also includes a plurality of positioning members positioned in the slot and being longitudinally slidable in the slot. A space is defined in the slot adjacent to at least one of the positioning members, and the space is repositionable in the slot by sliding the at least one of the positioning members.

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1. An adjustable fin insert assembly for mounting on a cavity of a wake board, the adjustable fin insert assembly comprising:a fin box positionable in the cavity of the board, the fin box having an upper surface and a lower surface, the fin box being elongate with a front end and a rear end, the fin

1. An adjustable fin insert assembly for mounting on a cavity of a wake board, the adjustable fin insert assembly comprising:a fin box positionable in the cavity of the board, the fin box having an upper surface and a lower surface, the fin box being elongate with a front end and a rear end, the fin box including a slot formed in the fin box, the slot extending into the fin box from the lower surface thereof, the slot extending along a longitudinal extent of the fin box; a fin member removably mountable on the fin box adjacent the slot, a portion of the fin member extending into and being slidable along the slot for permitting adjustment of a position of the fin member in the slot; and a plurality of positioning members positionable in the slot forwardly or rearwardly of the portion of the fin member extending into the slot to adjust the position of the portion of the fin member in the slot, the positioning members being longitudinally slidable in the slot, a space being defined in the slot adjacent to at least one of the positioning members, the space being repositionable in the slot by sliding the at least one of the positioning members. 2. The assembly of claim 1 wherein the slot in the fin box comprises:an entry portion in communication with the lower surface of the fin box; and a retaining portion in communication with the entry portion of the slot. 3. The assembly of claim 2 wherein the entry portion extends in a plane oriented substantially perpendicular to the lower surface of the fin box and the retaining portion extends in a plane oriented substantially perpendicular to the plane of the entry portion.4. The assembly of claim 1 additionally comprising a loading/unloading opening formed in the fin box and being in communication with the slot to permit loading and unloading of the fin member and the positioning member in the slot.5. The assembly of claim 1 additionally comprising at least one protrusion extending from the fin member for being removably insertable in the slot when the fin member is positioned adjacent the slot.6. The assembly of claim 5 wherein a pair of spaced said protrusions extend from the fin member for inserting into the slot.7. An adjustable fin insert assembly for mounting on a cavity of a wake board, the adjustable fin insert assembly comprising:a fin box positionable in the cavity of the board, the fin box having an upper surface and a lower surface, the fin box being elongate with a front end and a rear end, the fin box including a slot formed in the fin box, the slot extending into the fin box from the lower surface thereof, the slot extending along a longitudinal extent of the fin box; a fin member removably mountable on the fin box adjacent the slot, a portion of the fin member extending into and being slidable along the slot for permitting adjustment of a position of the fin member in the slot; and a plurality of positioning members positioned in the slot and being longitudinally slidable in the slot, a space being defined in the slot adjacent to at least one of the positioning members, the space being repositionable in the slot by sliding the at least one of the positioning members; wherein the positioning member comprises: a base portion being removably positionable in the slot; a filler portion being removably positionable in the slot. 8. The assembly of claim 7 wherein the base portion of the positioning member is slidably movable in a retaining portion of the slot and the filler portion is slidably moveable in an entry portion of the slot when the base portion is located in the retaining portion of the slot.9. The assembly of claim 4 additionally comprising a closing member removably positionable in the loading/unloading opening in the fin box for selectively preventing movement of the fin member and the positioning member out of the slot.10. The assembly of claim 1 wherein the plurality of positioning members are removably positionable in the slot.11. An adjustable fin insert assembly for mounting on a cavity of a wake board, the adjustable fin insert assembly comprising:a fin box positionable in the cavity of the board, the fin box having an upper surface and a lower surface, the fin box being elongate with a front end and a rear end, the fin box including a slot formed in the fin box, the slot extending into the fin box from the lower surface thereof, the slot extending along a longitudinal extent of the fin box; a fin member removably mountable on the fin box adjacent the slot, a portion of the fin member extending into and being slidable along the slot for permitting adjustment of a position of the fin member in the slot; and a plurality of positioning members positioned in the slot and being longitudinally slidable in the slot, a space being defined in the slot adjacent to at least one of the positioning members, the space being repositionable in the slot by sliding the at least one of the positioning members; and a plurality of securing holes formed in the fin box, each of the securing holes extending into the fin box from the upper surface thereof. 12. The assembly of claim 11 wherein a bore is formed in the fin member, the bore in the fin member being alignable with one of the securing holes in the fin box such that a fastener is extendable through one of the securing holes, the space adjacent to the at least one positioning member, and into the bore of the fin member.13. The assembly of claim 11 wherein the plurality of securing holes is in communication with the slot.14. The assembly of claim 13 wherein the plurality of securing holes is distributed along a length of the slot.15. The assembly of claim 1 wherein the slot in the fin box comprises an entry portion in communication with the lower surface of the fin box and a retaining portion in communication with the entry portion of the slot;wherein the entry portion extends in a plane oriented substantially perpendicular to the lower surface of the fin box and the retaining portion extends in a plane oriented substantially perpendicular to the plane of the entry portion; a loading/unloading opening formed in the fin box and being in communication with the slot to permit loading and unloading of the fin member and the positioning member in the slot; at least one protrusion extending from the fin member for being removably insertable in the slot when the fin member is positioned adjacent the slot; wherein a pair of spaced said protrusions extend from the fin member for inserting into the slot; wherein the positioning member comprises a base portion being removably positionable in the slot and a filler portion being removably positionable in the slot; wherein the base portion of the positioning member is slidably movable in the retaining portion of the slot and the filler portion is slidably moveable in the entry portion of the slot when the base portion is located in the retaining portion of the slot; a closing member removably positionable in the loading/unloading opening in the fin box for selectively preventing movement of the fin member and the positioning member out of the slot; wherein the plurality of the positioning members are removably positionable in the slot; a plurality of securing holes formed in the fin box, each of the securing holes extending into the fin box from the upper surface thereof; wherein a bore is formed in the fin member, the bore in the fin member being alignable with one of the securing holes in the fin box such that a fastener is extendable through one of the securing holes, the space adjacent to the at least one positioning member, and into the bore of the fin member; wherein the plurality of securing holes is in communication with the slot; and wherein the plurality of securing holes is distributed along a length of the slot. 16. A wake board system comprising:a wake board having a front portion and a rear portion and a longitudinal axis extending between the front and rear portions of the board, the board having an upper surface and a lower surface, the board having a pair of lateral side edges and rear edge, the board having a cavity formed therein; and an adjustable fin insert assembly mounted in the cavity of the wake board, the adjustable fin insert assembly comprising: a fin box positionable in the cavity of the board, the fin box having an upper surface and a lower surface, the fin box being elongate with a front end and a rear end, the fin box including a slot formed in the fin box, the slot extending into the fin box from the lower surface thereof, the slot extending along a longitudinal extent of the fin box; a fin member removably mountable on the fin box adjacent the slot, a portion of the fin member extending into and being slidable along the slot for permitting adjustment of a position of the fin member in the slot; and a plurality of positioning members positionable in the slot forwardly or rearwardly of the portion of the fin member extending into the slot to adjust the position of the portion of the fin member in the slot, the positioning members being longitudinally slidable in the slot, a space being defined in the slot adjacent to at least one of the positioning members, the space being repositionable in the slot by sliding the at least one of the positioning members. 17. The system of claim 16 wherein a pair of the cavities are formed in the board, the pair of cavities being laterally spaced on the board, and wherein a pair of the adjustable fin insert assemblies are mounted in the pair of cavities.18. The assembly of claim 1 wherein the positioning members are configured to close the slot forwardly or rearwardly of the fin member.19. The assembly of claim 16 wherein the positioning members are configured to close the slot forwardly or rearwardly of the fin member.20. An adjustable fin insert assembly for mounting on a cavity of a wake board, the adjustable fin insert assembly comprising:a fin box positionable in the cavity of the board, the fin box having an upper surface and a lower surface, the fin box being elongate with a front end and a rear end, the fin box including a slot formed in the fin box, the slot extending into the fin box from the lower surface thereof, the slot extending along a longitudinal extent of the fin box; a fin member removably mountable on the fin box adjacent the slot, a portion of the fin member extending into and being slidable along the slot for permitting adjustment of a position of the fin member in the slot; and a plurality of positioning members positionable in the slot and forwardly or rearwardly of the portion of the fin member extending into the slot to adjust the position of the portion of the fin member in the slot; wherein the positioning members are configured to close the slot forwardly or rearwardly of the fin member substantially flush with the lower surface of the fin box.