I use faskolor on all my bodies. I like it because it takes a pretty good beating, easy to apply w/ an airbrush and even easier to clean up because it's water based.
Createx / Auto Air is great water based also.
Fairly thick compared to ready to spray Spaz, I m having no problem aroun 40 PSI with a .38 or .5 nozzle on both Master or Iwata.