Zero Off is a GPS speed control based solely on input from satellites and engine management systems. It is based on the speed you are traveling across the surface of the water; therefore, there is no requirement for skier weight, crew weight, KX, PX or even any kind of wind adjustment. You simply set the desired speed and go. This easy-to-use technology has made Zero Off the industry standard.
Zero Off has been tested and developed since early 2005, not only with some of the best skiers in the world, but also with engineers who develop the engine management systems for the boats. Zero Off has the same concept of pull for all events in our sport and has built-in timing that does not require magnets on the course.