I only use paint brushes on little things like landing struts and stuff because it is just easier for me. Otherwise, I do all my painting with an airbrush .. a Badger, 175 I think. Badger Crescendo, whatever that one is, and I have one each small, medium, and large needles so it works very well for all kinds of things from body painting to smaller stuff.
But yeah .. to answer your question ... I use an airbrush for the kind of thing I'm talking about.
I was wondering, would a layer of clear coat do the trick? I've never worked with clear coats before but the thought hit me and it would make sense ...... advice anybody?