I've been doing research on krylon and from what i've read, customizers lean toward his opinion. given the size of the item you are painting --a finer mist, nozzle, paint pigment would sound like a better way to go. I'd probably recommend you use paint designed for the popular plastic miniature games like warhammer 40k. I don't know what is in Games Workshop primer or Primer produced by the Armory, but its really good stuff to use on plastic IMO. Vallejo paint is a expensive paint targeted at minis cause it has a finer pigment and better pigment ratio than alot of other hobby paints. GW paint and Tamiya paint works pretty good, heard japanese paint Mr Color is very well liked as well. Keep in mind the Tamiya and Mr Color were recommended for airbrush usage. Hope this helps