Hey everyone i just wanted to let you know on a little tip. I put Zyrex bottom paint on my boat over this winter. My boat does 72 normally. I have not tested it yet but we put it on a 2011 Glastron 28ft Cabin Cruiser with a single 8.1 that was doing 48 and it is now at 55. I am expecting 79-82 mph just from a high performance bottom paint. Let me know if you have any questions i am not trying to sell it or anything just want to help fellow boaters/racers out. It is a good way to get ahead without having to touch your engine. Plus it comes in alot of neat colors. I put it on my boat only because i live at a marina and do not want to trailer it being i go out everyday. The speed is just a plus side.