Hard plastic is safer for consistent tracking across mice.

Stick with hard plastic if you use multiple mice or don’t want to gamble on compatibility.

Metallic pads look slick and feel fast, but they introduce variables. Some sensors — especially older or lower-end ones — freak out on reflective or textured metal surfaces. You get random spin-outs, jitter, or tracking dropouts that are annoying to diagnose. Hard plastic is boring but predictable; pretty much any optical or laser sensor works fine.

The catch: if you only use one high-end gaming mouse with a modern sensor (like any PixArt 3360 or 3370 variant), metal can be fine. The glide is unique and some people love it. But if you swap mice often or use anything less than flagship hardware, hard plastic saves you the headache.

Don’t let the shiny surface fool you.