I polished out an Nighthawk Black Pearl MDX with a good buddy of mine. I used Poorboys SSR 2.5, but I also noticed that it left some light marring in direct sunlight. I think the poorboys SSRs are pretty darn easy to use and might be a good starting point. If you go with 2.5, I would definitely reccomend follwing it with 1 or 2 to ensure that you dont leave any marring behind. That NBP really is a neat color. We sealed with EX and I was very happy with the result.