Trackball for 20 years now exclusively. I like it. Can imagine it is a little unstable. It's rather high. I like the idea to have the keys separate from the tra

Trackball for 20 years now exclusively. I like it. Can imagine it is a little unstable. It's rather high. I like the idea to have the keys separate from the trackball. Drag and drop for example can put some strain on my wrist.