Re: Best sander for bottom sanding?
That's an interesting concept, but like other have said VC 17 doesn't really need any sanding.
I have it on my boat as well. All you need to do is rudder, keel, leading edge, and water line between coats. You are simply painting the sections of the bottom that get the most wear. Then the following year repaint the whole bottom. That way you wear down the paint and no sanding is needed. The face lift keeps you from possible build up, and saves you money in the long run.