Mitch you using it to regulate gun pressure from an already regulated line? If that's the case it will work ok. They can be restrictive though sometimes. What I do although Barry recommends something different, is when I'm in the booth I set the pressure at the regulator on the wall just in front of the hose. (we use a 35 foot hose in the booth) No regulator at the gun. Your air setup may be different but you could try setting your pressure at the regulator where you connect your hose, provided you have one there. If not you may want to rethink your layout. Primer, and base not as critical, but when you shoot clear having something restrictive can/will affect how your gun sprays the clear.