i heard about ceramic feet, do pros use them ? They are supposed to have 0.02 coefficient of friction, while teflon has 0.10. Also they have less difference between static and dynamic friction.

I though about using them on cloth, because on aluminum and such mousepads, they glide to much. Also there is question, if they fit into slots designed for mouse feet, because having them in middle without teflon ones, i would be afraid it compromises stability. And teflons were left on mouse, even if ceramic feet were higher, there would be probably still friction from them. Also how stable is it ? Because you just stick them approximately on the mouse bottom.