I’ve noticed that I don’t hold my mouse the way they’re designed to be held. My hand goes over it kind of sideways, so that my pointer finger rests on the scroll wheel. That’s the most comfortable position for me. When I go to click on something, I slide my pointer finger over, which is awkward. I feel the stress running through the rest of my hand when I do it.
They should redesign the mouse to fit the hand’s actual resting shape.