We're on Cayuga. I have used ACT in the past, though the last several years I have been using Blue Water Marine Copper Shield 45 Ablative. It seems to do a better job keeping off slime than the ACT did. Either will work well to keep the zebra mussels at bay. The Blue Water paint seems to be a little harder and less likely to come off (purely subjective). We usually trailer our boat mid season to other places, and I lose less paint on the trailer bunk areas of the bottom with the Blue Water paint. It holds up well to pressure washing. I recoat it every couple of years, and it still works well on the second season, even though the boat was out of the water for the winter.
