2 of 3 people found the following review helpful
Good for RSI,
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This review is from: Kensington SlimBlade Trackball (Electronics)
Bought this after trying a whole bunch of anti-RSI input devices (tablets, weird mice, rollermouse etc). Works well and reduced my RSI. I sometimes use one hand to move the ball and the other to click.
Works nicely with new drivers in Win7 64bit.
I use the extra two top buttons to start/stop anti-RSI Point-N-click dwell clicking software, which the trackball seems to work well with.
The scroller side-motion works well. Build quality is good. Ball/base gets dirty sometimes but it's easy to clean.
The clicking buttons do need quite a bit of pressure to activate for my taste at least.