So I just hooked up my new HX Effects and Victory V30 MkII rig, and found I had a lovely ground hum.
After some googling, I found that cutting the ground on the cables going to the FX loop, at the HX end should do it. No luck. So then I read cutting the ground on the TRS footswitch cable I was using should do it, and sure enough it did. Ground hum gone.
Question now is, should I reconnect the ground on the FX loop cables, or am I cool to run them without? What's the deal with running them with/without the ground connected, at the HX end?