Source: Hacker News
Article note: Neat!
I like trackballs, especially to break up my flavors of hand strain, but MX570s are a little unreliable (mostly cheap switches; replaceable), I have had no end of driver problems with the Elecom I got to try as an alternative, Saiteks are stupid expensive, and Microsoft killed their line, so its been hard to find nice ones. Especially ones that fit well which matters a _lot_ for comfort.
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