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.

I had exactly that with spectators as well Piglet - I mainly just used my record of achievement to make rollies on and mini mouse mat.

Yeah, I can never be bothered to move my arm that much for close quarters + the more accurate the mouse setup the more it highlights my slightly b'llcks aim 
I have the same problem as before - I still make rollies on my mousemat - I do find I have good aim after hoovering the mousemat for about an hour 

Think my fps flips between 88-89. I'm only running the 32bit as I got the steam version, haven't actually checked dir for 64.exe

don't understand why I'm doing this

~~200ms

talking about violence aiming skills
https://www.youtube.com/watch?v=nLwML2PagbY
can't link it properly, sorre :\

Fixed it for you

I do this weird thing where if I need small quick adjustments I twist my mouse rather than move it... Not sure what my sensitivity is regarding degrees in-game vs mouse distance travelled, will report back if I feel like measuring

It's about 5cm per 360