Just wondering, how many folk can use either hand for the mouse. I started using the mouse with my left hand and stuck with it for many years. But when I had Carpel surgery I had to switch to my Right hand. Also I do almost every thing else with my right hand.
Recently my right are started having tendon pain. So I switched back to my left hand. It only takes a few moments to get used to using the other hand. But I do keep all my mouse buttons the same.