I have a 2005 Moomba wakeboard boat. It’s black so it has some normal oxidation but also has some scuffs here and there being a 15 year old boat. I want to wetsand and buff it. My question is does anyone know how aggressive I can get with my initial cut? 2000 Grit pretty much takes out the oxidation but some of the scuffs needs to be more aggressive. I’m not as familiar with gelcoats as I am clearcoats that are on modern cars. Any help would be appreciated.