[lstodd]

Use cats. For all great Logi ergonomics, they fall prey to cat hair; and pads cover the screws, so they can't be reassembled pristine after cleaning. Still, M500s is the best.

[account42]

Pads over screws seem to be common for pretty much all mice. At least pads can be replaced easily and cheaply, unlike crap switches or wheel encoders.