What differance would a stage one vs stage two compressor have in this matter? I have been trying different brands of paint. I'm currently using createx wicked. The bottle I had at the time recommended 40-50 psi for a .5 nozzle with no thinning. My tip is .3 I reduced slightly and started trying different pressures. In conclusion I came up with in order for my bostitch to perform like the Sparmax the pressure needed to be turned down to 12 psi cpaired to 40 on his. I know the regulator is good on my compressor. I have a direct line from the tank from there inline filter 1/4 inch npt butt connector to regulator 10ft airbrush hose direct to brush (no quick or Mac) shouldn't be losing any anywhere.