I used some mini files on mine, they are about 15 notes for a selection of 8 or9 with different radius's on them from a flat one to a variety of curved one's to a variety of triangular one's. they help you keep the angles of the pedals crisp and the lines strait. Then go through the grades of wet and dry.
Here is a pic, i have a before somewere but cant find it, i will post it up later but this is almost half way through and as far as i have got. i am doing them bit by bit. its a bloody messy job though.
i will take a pick of the files later to.
hope this helps mate