Roccat Kone XTD Max Customization Gaming Mouse (Laser 8200 DPI sensor, Easy-Shift [+] button, Weight System) Black (Personal Computers)
And I've tested mice Logitech G500, Swimming Rather, Deathader It is the top performance for the FPS. Excellent grip, precise, Easy Shift very useful, and finally a perfect glide wheel and true 4G! It is worth the investment coupled with a Corsair K7