OK so pulled my EVOL ,30 out and degassed and removed air tubs and installed a large power plenum and since I was there I replaced reg orings , OK so My Evol I tunes to shoot the JSB 44 grains at like 870s here is a small shot string 872,FPS,266,M/S, 875,FPS,267,M/S, 877,FPS,267,M/S...