I had to pitch my old Sears gun. I got a Hausvile Campbell HVLP(I can't remember how to spell it) and I have been pleased.
Turn your compressor pressure all the way up then use a separate filter and regulator to drop the pressure. When the air is compressed to a higher pressure (100 psi) then expanded to 40psi it is no longer saturated at 100% relative humidy. You also need at least a 5Hp compressor that can keep the air tank at ~100 psi while you are painting.
