I have the silver done and I am ready to go on the colors, but I am on the fence about using rattle cans or breaking down and buying an airbrush. For those of you who use an airbrush and the Floquil and Polly Scale colors, since most of them are acrylic, are they still fairly durable once they are sprayed on and clear coated? If I go the airbrush route, I plan on sealing layers with a flat clear coat like Testors Dullcote or Krylon Flat. I have used both and never had issues with either on other projects. Just want to make sure the Floquil and Polly Scale acrylics are durable enough. Not planning on abusing the helmet of course, but I am hoping a simple fingernail nick won't remove paint either. Thanks!