I just used AIO one to remove some waterspots. After i used aio i used UPP i used upp to get some waterspots that i missed. After reading the bottle i saw it said it rub gently on paint but i rubbed pretty hard to get the water spots out i also rubbed pretty hard with the aio to get the waterspots out. i was wondering if this harmed my finish? I was also wondering whats the best way to look for scratches and swirls i have it in a garage now with flouresent lights i always herd that scratches show well under flouresent lights is there any other tricks to look for scratches?