I switched to dvorak for RSI reasons about two years ago and have now switched back to qwerty. If dvorak (plus split programmable keyboards, vim, etc) made any difference to my symptoms, it was at least not enough to be noticeable (though it is hard to say since the symptoms vary in intensity).
One of the things I'm considering as a possible explanation for my issues is that all of the changes I've made have made my usage patterns smaller and more repetitive, and that going back to more inefficient methods slow me down and force me to move my arms in bigger movements might actually be less painful.
One of the things I'm considering as a possible explanation for my issues is that all of the changes I've made have made my usage patterns smaller and more repetitive, and that going back to more inefficient methods slow me down and force me to move my arms in bigger movements might actually be less painful.