When I watch some CS:GO videos, I see they have fully static crosshair. For example, in this video, NiP vs eXtensive from ESL Major Series Winter 2012. I'm not talking about a recoil control thing. I mean that guys in the video can smoothly pull their aim down. However, when I shoot there is a little vibration on my crosshair. I mean very small, left and right. How do they do that?
edit: I painted : http://i.imgur.com/rxvm1ha.png compare this videos first: