I just painted my wife's '55 and I'm getting tiny bubbles forming on the surface as soon as I spray it. I'm using Restoration Shop Acrylic Enamel, and I'm using a Devilbiss starting line HVLP with a 1.3 tip, also tried a 1.8. I've never had this happen before, and the epoxy primer laid down really nice. I've tried adjusting the air pressure, reducing it, and changing tip sizes, but can't get rid of this problem. Anyone got any ideas as to what's causing this????