Dedenbear's STSK System is the biggest innovation in throttle stop racing since the inception of the throttle stop itself. It combines the consistency of an electric throttle stop with the tunability of an air-operated stop. The STSK can open and close the blades eight separate times during a run, all at different speeds & different blade angles. Starting line control is also included for the ultimate launch consistency. The best part: every adjustment can be accomplished easily right from the driver's seat, including stop RPM.