Hey guys, this may sound kind of silly, but can copper shielding tape actually cause grounding problems? I rewired my entire guitar, and I had a humming problem with low output unless I was touching something metal on the guitar. I resoldered all the connections, and it still hummed no matter what I did. This is a very basic wiring layout, 2 humbuckers, 1 volume, 1 tone, 3 way switch. No fancy wiring tricks. I checked and rechecked, soldered and resoldered. This is the cleanest wiring job I've ever done, and everything was connected properly. The only thing different from before was the copper shielding foil I got at GuitarElectronics.com. The whole point of shielding tape is to prevent electrical interference, it couldn't be the cause of my humming problems, could it?