Hello, I just got into Air Brushing. I have the California 4610. It's a 4.6 Gallon Air Compressor. I have it running to a regulator then to my Air Brush. My question is, I notice it fills to 120 psi but, it turns on again for a fill at about 85 -90 psi. It really doesn't give a lot of time between fills while air brushing. Is there a way to turn it down so it will fill at say like 50 psi instead?. I have gone looking online and I know there is a screw to have the high pressure cut off set at a higher level but that is NOT what I want to do. I am guessing that the same screw would also set it to kick on at a lower psi but I am unsure. Any help or advice would be very thankful.