Hi Georgs- We use Interlux Micron Extra, spending about 8 mos in L Champlain, the Chesapeake and brackish rivers. Works for us with just a little light scum around the waterline. In my old racing days on Champlain we used VC-17 - good for the 6-month season. Regards, John "Seahorse" >What recommendations do you have for me, especially in anti-fouling paints for freshwater service and technique tips? -- **************Planning your summer road trip? Check out AOL Travel Guides. (http://travel.aol.com/travel-guide/united-states?ncid=aoltrv00030000000016)