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An apparatus configured to permit the use of charcoal for cooking in a gas barbecue grill, the gas grill having a bottom casting containing a gas burner element, a cooking rack supported thereabove, and a top casting rotatably affixed thereto. The apparatus includes a tray configured to be received

An apparatus configured to permit the use of charcoal for cooking in a gas barbecue grill, the gas grill having a bottom casting containing a gas burner element, a cooking rack supported thereabove, and a top casting rotatably affixed thereto. The apparatus includes a tray configured to be received within the bottom casting and the tray includes a pair of handles. Each of the handles includes a proximal end and a distal end, and the handles are rotatably connected to the tray at the proximal ends and the distal ends are configured to support the cooking rack.

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An apparatus configured to permit the use of charcoal for cooking in a gas barbecue grill, the gas grill having a bottom casting containing a gas burner element, a cooking rack supported thereabove, and a top casting rotatably affixed thereto. The apparatus includes a tray configured to be received

An apparatus configured to permit the use of charcoal for cooking in a gas barbecue grill, the gas grill having a bottom casting containing a gas burner element, a cooking rack supported thereabove, and a top casting rotatably affixed thereto. The apparatus includes a tray configured to be received within the bottom casting and the tray includes a pair of handles. Each of the handles includes a proximal end and a distal end, and the handles are rotatably connected to the tray at the proximal ends and the distal ends are configured to support the cooking rack. ing a positionable component with a stroke length; a supply of pressurized gas operably connected to provide a forward thrust and a reverse thrust to said positionable component; a brake operably connected to said actuator; a sensor system that determines a measurement of said positionable component along said stroke length; and a servo control system electrically connected to said supply, said brake, said sensor system and said pneumatic actuator, wherein said control system operates to initiate the forward thrust to move the positionable component along said stroke length and once a deceleration point along said stroke length is reached initiates the reverse thrust while maintaining the forward thrust and simultaneously selectively applies the brake to stop the positionable component within a predetermined tolerance of a desired stopping position. 9. The system of claim 8, wherein the brake controls a velocity of the positionable component during the forward thrust. 10. A precision servo control system for a pneumatic actuator comprising: a pneumatic actuator having a positionable component with a stroke length; a supply of pressurized gas operably connected to provide a forward thrust and a reverse thrust to said positionable component; a brake operably connected to said actuator; a sensor system that determines a measurement of said positionable component along said stroke length; and a servo control system electrically connected to said supply, said brake, said sensor system and said pneumatic actuator, wherein said control system operates to initiate the forward thrust to move the positionable component along said stroke length and once a deceleration point along said stroke length is reached initiates the reverse thrust while maintaining the forward thrust and simultaneously selectively applies the brake to stop the positionable component within a predetermined tolerance of a desired stopping position, wherein the brake is a proportional brake. 11. The system of claim 10, wherein the supply of pressurized gas is operably connected to said pneumatic actuator via at least one directional valve. 12. The system of claim 10 wherein the control system is separate from the pneumatic actuator in a housing having a keypad and a display to enter and display commands and having a communication port that allows commands to be provided from a remote computer. 13. The system of claim 10, wherein the control system is separate from the pneumatic actuator in a housing that provides at least one drive output to control the supply of pressurized gas and provides at least one current output to control the brake. 14. The system of claim 10 wherein the proportional brake controls a velocity of the positionable component during the forward thrust. 15. A pneumatic-actuator system comprising: an actuator having a pneumatically-positionable component; and a control system having at least one tunable gain parameter, wherein said control system moves said component from a first position to a second position while said component carries a first load while maintaining a predetermined position tolerance without a change in any of said at least one tunable gain parameters, and wherein said control system moves said component from said second position to a third position carrying a second load, said second load at least 33% different from said first load while maintaining said predetermined position tolerance without a change in any of said at least one tunable gain parameters. 16. The system of claim 15 wherein said second load may differ from said first load up to an entire range of a load specification of said actuator. 17. The system of claim 15 wherein said first position and said third position represent the same position. 18. An automated method of controlling a pneumatic actuator operably connected to a piston in a chamber and to a brake wherein a sensor system generates measurement values representative of a movement of