That's good info to know! I bought a purple Harbor Freight gun but haven't used it yet. Hope it doesn't give me too much grief.
I have a small compressor but will be only spraying primer (Dupont epoxy primer) and only small sections at a time...maybe like 1/4 of the vehicle at a time. I've read about the problems with a too small compressor, but is it really a big deal if you're only spraying primer?