I think you're being unfair to him, tailslol. There's nothing wrong with determining the best design, and I'd like if more manufacturers would take note. The only issue i can see above is that the axle passes across two switches so if the wheel encoder is too low the axle may bottom out on the closer switch before it actuates the farther. The wide axle design avoids all of the issues though so I consider it already solved. I've only used one mouse like that, a microsoft basic optical and not for long, it having an office sensor, but I noticed that it was an efficient design with a pleasing wheel click.