>>14This might be the first time consciously thinking about how I use this trackball, because I've never had to explain it to anyone.
In neutral position on my right hand:
- my thumb is on the bottom-left button;
- pointer, index, and ring finger are on the trackball;
- pinky is on the bottom-right button.
## Button Reachability
- The most used bottom-left and bottom-right buttons are not far at all and very accessible.
- I use my thumb to push the top-left button which acts as the middle click. This requires that I shift my hand, but I don't find that a problem. It feels fine to me.
- The top-right button does nothing in most programs so I rarely push it. When I do use it, I find that I favor using my ring finger to push it. The only program where it does anything is Emacs, and that's only because I bound #'split-window-below to it.