I personally prefer the old-school laquer approach. At least 6-10 coats of paint and clear mixed together and a buttload of wet sanding. Expect it to take a week or more to finish. Another dirty trick if you're *not* using metallic pain is to put a tiny bit of it into the clear to tint it and help blend the imperfections a bit.(I'm talking about a teaspoon or less per gallon - you should hardly see the effect) Mercedes does this trick on their new cars and it looks great(they also matching tint the windows which is slick).