SO here are some links of my POV which i use the same sens (1600dpi YEA 1600 I AM CRAZY and 2.24 in tf2 mouse configs [all mouse options in tf2 are DISABLE including raw input and those things]).

http://www85.zippyshare.com/v/Y1eIze0J/file.html
http://www85.zippyshare.com/v/3FcoO5ID/file.html

OK so I am the guy of the vid.. so i am surprised becouse my friend sent the site link to me and I was like " WTF" (sorry for my english). SO in this video pleaple say I am using some " aim locker" program or something like that... so my mouse is high sens (10 cm per 360 I think or something higher than dat) im not so god at aiming at all so i do some "flicks" and the shots dat I hit was like lucky shots or something like dat. If you still dont believe in me here is the LINK of the demo http://www85.zippyshare.com/v/3FcoO5ID/file.html and you can see my play style ( wat is the same of the vid) so i think you can take conclusions of it here is my steam profile http://steamcommunity.com/profiles/76561198072584614/badges/2. :D