I painted a bike with a brush once a long time ago. it did better than any spray job I ever attempted. But I put on about five very very thin coats. Each coat cut just a little less each time. the final was still over half thinner I think. God that thing stunk to high budda while drying.

I think it did pretty good one thing is it didn't scratch nearly as bad as when i spray one.

I really do like rubbing compound better than sanding after the thing is done before i clear coat it. At least so far that is holding true still. This is the first thing I have done in twenty years except garbage projects around the house. For those its just avoid the runs and do it quick.