Originally Posted by Lawpass
Using the reg below 500psi can certainly be done, its just a question of if you have enough velocity or if you need to compensate with a spring kit. I would guess you'd be able to dial in the back velocity adjuster and get enough velocity at around 500. The further you turn down the reg the more likely you'll need to mess with the springs.
so If i have the pressure @ 500 I'd need to turn the spring in very far to reach a high velocity? And I'd get around this by putting on a harder spring right?