I'm a Heritage fan, have played quite a few Heritage guitars and appreciate the Heritage legacy; I have never owned one. I'm considering buying an H530. I played one at a local shop recently, a gold-top. It plays and sounds great; I have a few questions... The fit a finish have suffered a bit, perhaps from being on the wall at the guitar shop, it has some nicks. When I turn down the volume on either of the pick-ups, even just a little bit, the P90 hum increases significantly. Same deal if I switch to a single pickup. I know about P90s and own a semi-hollow with P90s, but this hum was quite a bit more than I'm accustomed to. Is this typical of 530s? I'm told this bad-boy has Lollars. Looks like someone (likely the tech at the store) adjusted the pick-ups quite a bit, the screws have been raised to be much closer to the strings. The plastic on the P90s themselves is not 100% tight to the body (there are some openings between the body and the pickup plastic) I imagine this is because the top is arched and nothing to worry about (this will be my first P90 archtop.) The Gibson 330s I played had quite a bit less hum when adjusting the volume on a single pickup or switching to a single pickup. Just wanted to see if this is typical. I wish there was another 530 to play within a radius of 150 miles or so to compare, alas there is not. Thanks in advance!