Your boat was built to meet the requirements of the AWSA (American Water Ski Association) for towing sanctioned water ski tournaments. A redundant speedometer system is one of the requirements. By MY estimate tournament ski boats built in the 70's, the majority were used as intended. During the 80's maybe half were used as intended either in tournaments or for practice. The 90's my guess would be maybe 10% were used as 3-event tournament or practice tow boats, and another 10-20% in the new wakeboard discipline. 2000-current my best guess puts less than 5% in the 3-event category, 25% in the wakeboard category (tournament level use) The rest are all used for recreation use.
