Re: how to fix grounding problems? (yeah i should know this...)
If you touch the strings, bridge, other metal parts and it goes away ... it's normal ... although it shouldn't be a *loud* hum, just noise of sorts. Part of your hands should always be touching the guitar anyway, whether muting the strings, resting on the bridge etc. Same for the fretting hand if the plectrum hand isn't. What you describe here sounds normal.