My injury was multi-factor. It started with a cycling injury. Medication taken from the cycling injury was partially a cause of the RSI coming on. It was a

My injury was multi-factor. It started with a cycling injury. Medication taken from the cycling injury was partially a cause of the RSI coming on. It was also just a really stressful time with a lot of work. But I had been in the field for ~15 years with no significant RSI, and those injuries and RSI weren't too long after I had switched to mechanical keyboards. I struggled for a few years. There's so much momentum behind mechanical switches it was really hard for me to convince myself they could be the problem, but I never got rid of it till I stopped using them. I do think key travel is part of it. Playing piano is/was 10x worse than computer keyboards, even though nice piano actions have a softer "bounce" than any computer keyboard. The piano keyboard has huge travel. Meanwhile playing guitar the fretboard has absolutely zero give or cushioning, but the finger travel is extremely small, and it's never given me an issue. (I gave up piano to reduce chances of having an RSI again.) There's no real proof/study of travel vs bounce anyway with respect to fatigue and injury.