Operation completed. The stock DeArmond 2000s in my X-160 Rockabilly have been removed and replaced with T-Armonds. It sounds soooo, much better now. I'm tempted to put the DeArmonds in a NS Starfire III just for fun.
The T-Armonds hum a little, but it's not that bad. I can't comment on feedback since I play at "house" levels and the volume is too low to cause feedback.