We can say, I have tried many mats and mouse (Xai, Intellimouse, etc .. DeathAdder and rugs that go with 9HD, Mantis, QcK +, etc ..) the heavy qck remains a legend in the circles "gaming", but a legend who walks, and is still valid!
Its size (admittedly very large), thickness, accuracy make carpet more than necessary for any "lowsens" player playing with an optical / LED.
Appealing to the touch, flexible, not messy, convenient to carry, simple .. What more, it gives me now indispensable accessory in terms of games at a professional level (CS1.6, a dream with a DeathAdder)
Amazon Service always with return