What polish does everyone use? Im after one to help cut out swirls etc. Ive alway's used autoglym super resin polish and its ok but ive noticed they do a autoglym ultra deep shine, they say its for dark based cars but is it a filler rather than a cuuting polish, i dont want it to mask the swirls. Im going to try and lend a machine polisher too so i know that should help. So is there any other good cutting polish's?