Good point on using the other hand. I did that especially while writing those symphony pieces, and it gave some relief to switch off (and so did a rigid wrist brace). The trackball above can be used with either hand.

I am not a gamer but i am guessing gamers would want the fastest left-click possible. I don’t think the trackball would be good for that, since you use a thumb.

Ergonomics used to be a more important consideration back in the 1980s. It was a regular short part of my intro to comp. sci. courses. Now, you don’t hear much about it unless it’s in a specific product review like the Kensington review. I don’t know whether that’s because people now take ergonomic considerations for granted, or they dismissed it as a fad. Either way, it’s real, especially the older i get.

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Presonus 192 & Faderport 8, Royer 121, Slate VSX, Adam Sub8 & Neumann 120 monitors.