[Certified]

I wish Supah Valves [1] were still available so I could recommend them. They use a smaller sprinkler valve as a pilot to move a much larger piston based valve _very_ quickly. That lets a lot more of your reservoir pressure get to the barrel before your projectile has shot out the end. The result? More range. More grins.

[1] https://www.spudtech.com/store/index.php?main_page=product_i...