I have a 27 Whaler CC Outrage and prior to purchasing the Seadeck, there would be times that I would take a pounding and would really feel it at the end of the day. It's a great product and certainly reduces fatigue, especially in the lower back and was very much worth buying. Installation was a breeze and it does stay in place.Along with this, I upgraded from flip flops and bouth the new gel/waterproof tennis shoes from Sperry. The combination or improvement was significant!!