I second Gene T's thoughts on the Pettit Trinidad SR bottom paint. We had a Irwin 34' sloop we kept in Richmond Bay Marina in SF and it lasted 3 years. Then we sold the boat when we relocated and used the product in combo with Interprotect 2000 as a barrier coat on a 46' we purchased in Fort Lauderdale and often sail in warm Bahama waters. When we hauled last Oct...after 2 years...it was in better shape then the Irwin hull. We had slime on the waterline on the sunny side of the hull while at dock but that was it.