I played for 3.0 for years then switched to the mx518. I didnt like the mx518 at all due to mouse prediction and wierd grip style etc. I have bought the DA and absolutely love this mouse no prediction no negative acceleration but one thing bothers me. I always used 6/11 windows sens but people tell me for DA u need to use 3/11 win sensi and 1800 dpi. At 450 dpi it tracks perfectly upto 2.3 m/s which i doubt anyone would ever reach. So can I use 450 dpi 6/11 I never had a problem with it i am playing for 1 week never skipped my mouse or noticed any negative acceleration etc. Another thing that i noticed in this mouse when i spray in cs 1.6 the mouse kinda moves sideways and the spray is kinda inconsistent could it be due to the fact that I am using fnatic qck+ and the 3.5g sensor has problems with it ? How can it be resolved ? Dont give suggestions use 3.0 or mx518 i cant overclock 3.0 at lan events so 1 m/s can be reached by anyone and I use a fairly low to medium sens and the mx518 feels way awkward to me. Thanks