Fastest Recharge level at what PSI on flatline?

[n1mr0d]

What PSI will give the fastest recharge.....I have a flatline and I wanna know what the most efficient setting is.

[Dubstar112]

most likely at a low setting, i never had any drop off with my flatline and run it at around 700-750....

however the reg should recharge fast enough to prevent shoot down down till around 100 lbs inside pressure.