https://www-ccv.adobe.io/v1/player/ccv/25tXxsfkLLK/embed?api_key=behance1
Through some tests using functional prototypes with a moving dial, I felt that the dial could be used either with your thumb without taking your palm off the mouse, or in a 'fine-tune' manner where you would use it as a dial with two fingers.
Rhino3D was used to make the initial prototypes, explore surfacing, and to add final details to the mouse.
Thank you!