Two of my Telecasters act as backups for one another and have the same pickups installed - a SD Vintage Stack in the neck and a SD Little ‘59 in the bridge. The first of the two (American Standard) has traditional wiring and is perfectly silent, even in noisy venues. The second Tele incorporates a series/parallel button and has a treble-bleed circuit (American Deluxe) and is unreasonably noisy. I’ve checked The solder connections, had a skilled tech do the same, and neither of us have been able to determine why the second Tele is so susceptible to noisy environments. Why would one guitar be noisy and not the other? Any thoughts or recommendations as to the potential cause?