I had a bottom job on my 27' hunter and when I went to pick it up; the tech told me he had put some speed slick on my prop and shaft. This would help the performance. Well since then I have a massive attack by critters on my prop and shaft. I have to go under every 7 - 10 days to scrape them off before the boat will even leave the dock. Anyone ever hear of this problem and if there is any way to repair with out pulling the boat out? I also heard that Teflon silicon grease on the prop and shaft helps keep it clean.