Trackball recommendation

To be honest, I never liked the trackball for doing cad work. Perhaps it’s just me, but I found it to be too “twitchy” for me and it actually seemed to make my hands more tense because I was clenching too much. Maybe other people have a better time of it, but I’ve sworn off trackballs since. Notice that the vast majority of people don’t use these devices. If they were better than a mouse, I would imagine, in our ergonomic-oriented offices, they would be more prevalent.

29 years using ProEngineer/Creo.  For a long time, I used the Logitech mx518 mouse.  After I started getting carpal tunnel problems, I switched to the 3DConnexion CAD mouse.  It has a dedicated middle mouse button.  This is a huge improvement because you don’t have to crank your finger back to press the wheel button anymore; simply drop your middle finger on the dedicated middle button, which produces much less strain on the wrist.  Later on, we purchased the 3DConnexion Space Mouse Pro.  This effectively split the workload across both hands.  I am so sold on this setup that I’d buy them myself, if my company would not buy them for us.

I had my first logitech M575 many years ago and bought the 2nd unit after 2 years. Both units had the same issue on the middle button(roller) after 2 years of usage. I had no ergonomic issues with this model, just the quality issue. I switched to MX Ergo 5 years ago and I have been using it since then. I like this model a lot and I would recommend this to other active Creo users as well.