Mouse Stop
I think that a mouse stop hack would be pretty cool. I've already thrown one together in my private hack, it's as simple as a slow aim (just put sens to 0). What do you think? Should more cheats have it? I think it is useful for AWPing since I always over flick a shot. The hack will turn your sensitivity to 0 when you look at an enemy. While it is kind of impractical, it's useful just being there.
Really cool ideea, I think you can make just a script in the config no need for a internal / external program. I will check it and edit later!
You cant do it with script, but its not bad idea jsu read crosshairdid and then sensitivity to 0 not that hard