I've got some updates:
1. I finally set my undervolting to 800v for all 8 GPUs. Why did this take me so long to do?
2. Antminepool seems to be down (XVG), so switched to unimining. Still just these 3 pools for XVG?
Wow, 800mV? Report back if it's stable - i'm pretty sure it won't be

Lowest undervolt i've applied is 825mV and that's for a 580 Gaming X that hashes 30Mh.
Curious what cards are these and what OS.
Nope, wasn't stable...