You can use my account! The beta already finished. I'd like to suggest you something and see if it is possible...
In games like Quake 3 Arena, There is a command inside the game, besides the sensitivity , it is cl_mouseaccel... If you could add it, because I use it in 0.05 in quake 3 and it changes my sensitivity but other games doesn't use it, I don't know how to convert my sensitivity to the 100 percent cause that cmd... Thanks!