I think adjusting the regulator is pretty straight forward, i'm still considering a drop in style for the airacuda, @3.25 turns from all the way in. and the gauge reading 2600- 2200 psi, I got a shot string of 967 960 960 960 957 957 957 955 947 947 945 943 ... 947 fps with 18.1 grain should be...