So in the past, I've use the meguiar's sanding papers along with the sanding block to fix headlights. Since I occasionally do this for family and friends with yellow headlights looking for a nice restoration. My procedure was like any other, start with 1000 grit move up to 2000, then finally 3000. Removed sanding marks with M105, Ultimate Polish, and sealed with Nxt 2.0. Well now I have been able to get my hands on the unigrit 3'' foam pad, and a set of unigrit sanding discs. My question is, if I were to use this on a DA was the best speed setting for sanding? as well as which speed setting not to go over. While on the topic of headlights, I also got the 12oz Headlight Protectant. Now will that go after Ultimate Polish step? or After Nxt 2.0?