My mouse has 800, 1900, 4500, and 9000 I think. But because of nerve damage and poor coordination I am limited to the 800 dpi which sucks, I have to lift the mouse and set it back down twice just to turn 180 degrees on foot because of my limited area of operation for my mouse. Any faster than that and I cannot keep up with it. Never injure your C-spine, maintain 3 points of contact when dismounting large vehicles, and all that good stuff. I can almost handle 1800 dpi but it still gets away from me. If I'd never injured my C-spine I'd be a PVP warrior, but when one can barely keep up with 800dpi there is not much hope against healthy players lol, and there is no flying ships or planes with a KB & M for me, it is impossible.