Just got a new lightly used store model Onyx Silver Sky and first impressions, wow, what a great look and what a nice neck! It's so much faster and smoother than my US Strat. Lots to look forward to. The guitar was shipped across the country so it'll probably take a day or three to settle in. I mention this because I get a fair bit of buzz on my lower three strings even though setup is very close to factory settings. I tweaked the truss rod a bit to add relief and this has helped, but I'd like to stay close to PRS specs. Any advice on this? What's very unusual for me is to see how much the tone knobs affect how much buzz your hear. The neck is pretty hot on 10 and the buzz is fairly loud unless I turn up the volume. That said, when I turn down the tone to 7-8, the buzz almost disappears! Can anyone explain the connection between audible buzz and tone? Thx!