Shine is right on, I have luck with a wool pad, but I also hook a router speed control up to a buffer and slow way down, (I still sand out to 2000) and it takes a bunch of practice (aka ruining a paint job and repainting) to learn how to use it, also never run your buffer dry, that will heat it up quickly, when I start getting near a to dry situation or my compound drys out I use a spray bottle with water. Being safe and sanding up as fine as you can with abralon pads or equivalant is a sure deal. But I think the biggest key here is shooting a test panel and learning to color sand and buff on it first so the pads run off the edge and not onto it. Also I would always start sanding and buffing on a deck lid, or hood, something that if you are to thin and cut through you can reshoot easily, not your roof!! I also generally have 4 or 5 wet coats before cutting & buffing, if not scuff with a grey scotchbrite and shoot more. I have used Eastwoods paint and have had great results just be patient, if it was easy and no extra work sanding and buffing everybody would shoot there own!! You will be proud when done, and as long as you mixed the paint correctly, you have enough coats on and you sand and buff you will be happy I believe.