During those days when my right wrist wants nothing more than to take me down, I find the only way I can get through my writing schedule is to mix it up. If my right hand repeats the action of using even the MX Ergo, there will be pain. However, if I move between the mouse and the touchpad, I find it brings me some much-needed relief. No, it doesn't prevent the pain, but it certainly lessens it. And when you have deadlines to meet and no way around them, any sort of relief is welcome.