Huma 12fpe Leshiy reg vs std Huma Leshiy reg question

I recently installed the std Huma in a Leshiy I purchased not long ago. Definitely a big improvement in shot count. Now I'm wondering if I should've got the 12fpe version. I'm currently shooting 16g AA with the 250mm barrel in the 760's fps/20-21 fpe range. Regulator is currently set, based on the label, at 100 bar and getting about 25 shots with a 3300 psi fill. My question is, at the same 20-21fpe power level is my shot count lightly to go up and if so, will it be enough to matter?