A method, a system and a device used within such enhances the
repeatability and overall performance of a person skiing through a water
ski slalom course. The device is a series of markers positioned on the
side of a ski boat which markings can be readily viewed by a skier being
towed by the boat at a distance of up to about 100 feet. The method
comprises having the skier noting the boat markings which the ski rope
crosses as the skier begins a turn into the slalom course. Once a run of
desired performance is obtained the skier can repeat that performance
more readily by always beginning the initial turn into the slalom course
based on the ski rope crossing the same marking on the boat.