just purchased a new 18' 52'' blazer and had a few cleaning polishing questions. Whats everyone using to clean their boats, had a guy tell me eagle one mag wheel cleaner works good? anything you can put on it after cleaning to help prevent scum line/oxidation? i've seen some blazers with a mirror finish, once boats are polished to that finish how long will they stay that shiny or do they return to the normal dull aluminum look? any input is appreciated