Haha, that's Alan Szabo. He's, arguably, the best stick in the world. I personally think he's a cyborg, or a robot, or an alien of some kind, because I can't even comprehend the amount of control that he is capable of..
For those that have never flown an RC helicopter, its about 100 times harder than a plane, because you have an extra axis (up and down) all the while modifying the rudder axis because a heli can use the rudder like a plane in forward flight, or pirouette while stationary.
Every orientation of the heli nose in, nose out, inverted nose in, inverted nose out, nose left nose right etc etc means that one or more of your cyclic directions is 180 degrees off or 90 degrees off.
I'm but a mere hack in comparison to Alan Szabo.
Here is a high quality video of Alan. Here is flying a 90 size nitro heli. These are the ferraris of the RC heli world. You'll note that he isn't thrashing this ship around as much, as its for a demo, and its for a non production heli that hasn't hit the street yet (his dad's company) so he's being careful. But you can see the immense control he has.
http://www.runryder.com/rrtv.htm?v=/helico...iego2007-03.wmv
FYI, a 90 size ship has a blade diameter over around 1.7 meters. The previous video is a 50 size ship with a diameter of around 1.3 meters.
I have 2 90's and 50 myself. Its the greatest hobby in the world. Until you crash. And trust me, you WILL crash.