I asked about this before. I have a 2011 Gibson Les Paul Tribute and it has a pretty hard hum. Now what confuses me is, its only sometimes. One day I get home from school it has no hum. I suspect it still has something wrong with it as its louder a bit louder then my squier strat which cost a no money at all but that could be normal. But then the next day its making the loudest BUZZ ever. Sometimes touching the strings and moving it around silences it a tinnyyyy bit and then sometimes its so low moving and touching the string it isn't needed or it doesn't make a difference. I took it for a setup and told him about the problem. He shielded the main cavity but it did nothing. I tried the lights in my house, nothing. What can it be? I will probably have to pay more to have it checked out just wanted to know if anybody knew anything before I take it.