when i go back into ini after chging and trying out its reverted to +90.0.
I used to play on a very small desk space, so had a 360 degree of movement in-game for 7cm of mouse movement. I played like that for years and it made spectators feel sick...These days I have bigger desk and a less responsive confgiuration. Some of the better gamers have huge mouse mats and get very accurate as they have very low sensitivity - they move a long way to turn a bit and have a lot more control over aiming.