Earlier quoted context omitted.
I have a Logitech MX Ergo which I quite like, which is a thumb trackball. I'm not sure how that compares to finger-trackballs though as I've never owned one, but a few friends have things like the Kensington one and like it a lot.
Alright, thanks. I've looked at that mouse before but I'm afraid that the ball will wear out my thumb even more. Maybe it's worth a shot though, or maybe I should go for one of those Kensington trackballs that you use your whole hand with.
One thing I like about the MX Ergo is that it’s very easy to use reclined with it on your chest, which sounds odd but can be good when you’re just clicking about.