The Topre is the only thing I didn't try. It's tempting, but it's an expensive keyboard and I have no problems just using cheap rubber dome/chiclet/butterfly keyboards.

Your experience is just like mine, but mine got so bad I ended up the doctor. The doctors & hand specialists & PTs are very clued in about wrist posture, desk setup, etc.. but there is literally no medical research on keyboard switch travel, force, work, bump stops, etc.. so they never said anything about what kind of keyboard I was using.