I seem to do great cleaning headlights until the very end I can't get it to come back to perfect clarity. I go from 1000 grit up to 3000 grit by hand with sandpaper. I have only been using microfiber towels to rub in the finishing polish by meguires. It seems to suck. Is it because I need to use a polishing pad or is it the finishing cheap polishing walmart product I'm using?