The only real dissatisfaction I’ve had with my UHK 60 v2 has been the trackball. The default ball just did not perform consistently, with sketchy tracking which sometimes just plain stopped working, requiring me to remove the module, roll the ball around on the table a bit before replacing to get it working again.
Replacing the default ball with the metal one has solved all those issues, it’s now a joy to use. 10/10 recommend upgrading if you find the default plastic ball less than stellar.
Its tracking quality too isn’t perfect as the clear resin layer adds to the sensor distance and so the image is unfocused, but the experience should be superior nevertheless
Anyways, which ball(s) is the trackball module normally shipped with these days?