I'm a big fan of the MX Ergo. To make it even better, I have a feature request for the trackball.

It would be extremely useful if the pointer speed could automatically adjust based on how fast the ball is moved. A quick flick would cover large distances, while slow, precise movements would offer fine control—eliminating the constant need to switch DPI modes.

Speaking of which, the DPI switch button should also be user-configurable in the Logi Options+ software, rather than being locked to that single function.

Thank you for considering these improvements for a more intuitive workflow.