I yous a Meguiars G220 which is a dual Action so it moves around more and doesnt stay in 1 spot. Read that it is harder to damage paint work then a standard orbital as it doesnt heat up and cut in 1 place. Thats what i read, wanted to practice before i move into the big league and i think i'll get a orbital next and some old body parts to practice on. Belive the orbital takes less work to get the same finish but have to practice with it to get use to it.