🖥 So I figured out over time that 14.5 TH/s @ 681 Freq. and 9 volts is about 'optimal' for the 'Average' S9 Bitmain Antminer, in case anyone else was wondering :-)
(Very few 'hardware errors')
(Also thanks much to BraiinsOS from Slush, who made an excellent 'firmware update' for this!).
https://braiins-os.org/