From what you say, IMHE, I'd back off the tension on the TR, and start again by experimenting setting it up with lighter tension strings - to ascertain whether the TR is doing what it should, without having to muscle it. Then report back. π
Okay, I got a couple of 4" wood screws you can have. They're stupid Torx heads, so I can't use them with my standard screwdriver.
Just pay the postage, packing, and a bit towards the scrap value - and you can have them, I suppose... π