I also avoid glossy mousepads since it would really mess up the pointer.oh yeah i've read it somewhere that you can't use a Glossy White surfaces because too much light reflection will mess up the sensor hence it cud not track the surface well =)
that is why expensive mousepadz were engineered with precise roughness for better tracking.
i should know better because i'm a MOUSEPAD geek
I use those that have a cotton wrapped mousepads.