On Which res do you play?

I personally play on 1280x960 4:3 aspect ratio

I know its not stretched like in CS, but since I come from CS when I started playing in Beta I just copied my settings from there.
Should I switch to 1920x1080 16:9?

I switch between native and that res

I switch the 1600x900 16:9 to 1440x768 16:10 and started playing much better

I play on 1400x1050
For your question, i dont recommend on switching since your eyes + muscle memory sync is already used to the stretch res. Tried to play native but it fucks me up

For me at least

1728x1080
Makes the crosshair better