This is over a year ago, and this year has felt like 2 years!! lol
I'm pretty sure i would have just adjusted the trimmers by ear. But yea, i've since discovered there is a bit of noise coming from the guitar which needs to be addressed, but it does amplify what i guess would just be the noise floor when the guitar is not connected. Nothing too crazy imo.
And yea it's worst when the drive is dimed, but more than tolerable around noon.