Just an FYI- I had poor results with Interlux Bottomcote NT this past season. When I called the company, the sales rep said that using a small roller less than 3/8" nap thins the coat and will not effectively cover. IMHO, sounds like a bit of an excuse to me, especially since I used two coats- however I will likely be using something else next season, maybe with more slime resistance. Any suggestions?