Re: Bottom paint for racers?
A lot of us have had good luck with Petit Vivid white bottom paint, which is a very hard ablative, if that makes sense. The big difference is that our boats are left in all season, so we need the extra protection. Althought I do see a few jBoats with Balto, which is extremely smooth when burnished, they are in all season.
Whether you are fanatical or not, if you race, you have to clean the bottom every week, two weeks at most. Have you ever tried a "Dri-diver?" It is an amazing piece of equipment, reaches everything except the keel.