bootstripe redux
I hate to repeat myself, but you could sand, mask, and paint two coats of Brightside on a 30' boat with about an hour's total labor time, and very little elbow grease. It will be brighter and shinier and less overall hassle than all the buffing, poliglow, etc. By the way, the Bootstripe tape really does work very well, but your boat may not have a stripe that is a constant width from bow to stern, like the tape does. If the tape is useable, though, I would recommend it over everything. I have used it, and it lasted for years.