I read an article a while back about using copper epoxy bottom paint. The article said that it is non-toxic, will last for years and that if anything that did grow on the bottom it washed off with very little work. The article sounded like this was a great way to keep you bottom clean help seal the boat and it was good for the environment. Has anyone used this? Is there a problem with electrolysis and through hull fittings? If there is can it be fixed with anodes? Are there any other concerns I should be thinking about?