A week with the Xlite V4 eS Medium (size 2), with 18cm hands: their favourite ergo shape yet, like a slightly shorter Model D. The underside display that shows DPI, battery and polling rate turned out useful, it's the best-built mouse they've owned, and they like the aluminium scroll wheel.
“This mouse is probably my favorite ergonomic mouse I've had or held (my hands are approximately 18cm long).”