I have been wanting a new FPS gaming mouse and I was down too the MX510 and the Razer Viper. I have decided to go ahead and get the MX510. Most people say that this is the best mouse but I shouldn't install the drivers. I just wanted to know why and if I don't install the drivers will I still get the same DPI and 5.8 Sensor rate? and what about the buttons? will I be able to assign them to certain commands?