Hi: I have a 1997 TomCat. I put bottom paint on in 2002 when I decided to keep in the water full time. I researched paint at the time and liked the Interlux Micron Extra. I had it done at Kitsap Marine, and decided against a barrier coat with the Vinylester barrier already built into the boat. The bottom paint is ablative, but it was put on in 3 thick coats and lasted without any growth or weeds for five years. I have only touched up the sunny side since then, and have still had no growth on the bottom surfaces. I am very happy with that product and the great service I got at Kitsap Marine. Whenever I pull the boat for a trip to Sekiu or elsewhere, I check the paint and hull carefully. It all looks good. I expect to get it fully redone next Spring. TWO-DAWGS.