[elitecustombody]

Greg,I agree with you for the most part, but if the metal is clean and sealed with epoxy primer, it should not rust if it was shot right away in dry and clean environment . Epoxy primer is the only primer that blocks moisture, that's why anyone with common sense will epoxy the metal and do their skim filler work over that, otherwise if filler is applied over bare steel,it will attract moisture and absorb it like sponge,

I've had to fix more than few cars that looked decent,but upon removal of filler and primer, I discovered rust, I've even had some cars with few repaints and no bodywork and yet they had rust underneath factory paint/primer, so I would never trust factory 40+ year old paint.