I decided to do a little fine tuning.
30 shot strings w/ regulator @125 bar
Power wheel: MAX
Ave: 894
ES: 10
SD: 3
Power wheel: 5
Ave: 881
ES: 13
SD: 3
Power wheel: 4
Ave: 848
ES: 13
SD: 4
Power wheel MAX looks best on paper, but Power Wheel 5 and 4 feel reeeeeeal good.