hey guys I need some advice. I just picked up an ultra 150 and the bottom is yellow from sitting in the water for several summers all summer long. I work at a professional detail shop so I know my way around a buffer/ waxes but I need to know what product that will make her look brand new again. Also its pretty scratched up so I might look into sanding down and re-"painting" the bottom this winter so some advice on that would also help alot!