You can get a springy finger strengthener for $10 or so, by the way. I found that after using Emacs for long periods of time I'd get a lot of tension built-up in my pinkie. (No RSI problems in my wrists, but my pinkie was really bothering it me.) Stretching it with one has helped a lot, as has using a typing timer (such as xwrits or workrave).
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[ 1.6 ms ] story [ 22.4 ms ] threadThe saxophone too... the left pinky table on a tenor sax is (almost) as much work as the shift key on a mechanical Olivetti typewriter.