Hello all. I have a new 60's MIM Telecaster with a rosewood fretboard, and the rod adjustment at the heel. I've tensioned the adjustment rod to leave just a scant bit of relief, so there's a bit of pressure on it. After setting everything up, I noticed a sympathetic vibration when playing a C, C#, and D on the G string on the lower frets I've pulled the guard, checked the chrome cover on the pickup, and everything else on the body, including the bridge. Nothing there seems to be causing it. Without any high tech testing instruments, my best guess is the rod is rattling against the routed channel inside the neck. I've considered taking the nut out, and trying to dribble some teflon-type lube down the channel, but other than that, any ideas on what to look for to pin down where it's coming from? Any ideas are most welcome. Thanks.