If you can handle the high sens, go for it. It comes with other benefits..
I would say 30cm/360 is the highest usable sens if you arent a true specimen that bends the rules. Even GTR and f0rest cant handle that fast.
If you can keep the crosshair easily on enemy´s head while moving and distance of 20-40 meters, you are good to go.
I cant even keeps it that easily while 360 in 40cm, so I lowered it back to 1.6-levels. Now I have it 58.1cm. Its easy a heck and I dont need put any effort in it. Ive learnt to use that low sens feeling again in GO after 1.6, and I think the benefits of my crosshair placement out-weight all downsides. Im not fast aimer, nor good sprayer, but I tent to read the game correctly. Hence, I need to capitalize on every read, thus the importance of crosshair placement is crucial.