Yup, just a case of using the lightest cutting material that will remove the deepest blemish you want to remove and then working up the scale (numbers) or down the scale (size of cutting media) until a nice polish finishes it up.
I have used the standard car finish products to cut the scratches but liked what I have read about the micro mesh. Can you comment on whether this is good for dust covers? I have a couple I need to attend to that are not badly scratched.