Slippery paint and non-removable thumb rest!

I used the mouse with 800 DPI and a sensitivity of 7/11 enabled improved mouse acceleration.
This makes it possible to precisely position the crosshairs. The clicks go slightly out of hand.

What mouse but all are dirty the following points:
The first coating. The mouse is painted shiny and slips after extended play time very easily from the hand. The mouse then you have to wipe every few minutes with a microfiber cloth. Is very disturbing!
2. The thumb rest is not removable. To maintain an optimum targets touch ring finger, little finger and thumb simultaneously with me mouse and mouse pad. This is when the RAT 7 unfortunately not possible because the thumb rest can not be removed.