I plugged in my old trackball Sunday, and by midday yesterday remembered why I'd stopped using it. It wasn't the shoulder--or not mostly the shoulder. Something about it, and how I was using it, were putting a lot of stress on the ball of my thumb. Ouch!
So I'm back to left-handed mousing, and thinking about what I'd want in a trackball.
So I'm back to left-handed mousing, and thinking about what I'd want in a trackball.
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