I can tell you what it looks like....... 1st of all he always wears wife beater/tank tops so that he has skin to skin where the rod is. It appears as though he uses his chin as the guide with his shoulder lifted up pinching the rod between his chin and shoulder, and then rolls his shoulder forward pushing the rod, lifts the pressure on the rod and slides the shoulder back without the rod moving, then rolls his shoulder again to push more rod. The net result is a very similar action to what I see some of the best welders I know doing with thier thumb and forefinger. I, being an amatuer, hold the rod and "stab" it in and pull back and repeat. The best guys "slide" the rod continuously into the puddle creating the same feed distance every time. In the end George has as nice a bead as anyone I know, and I know some very good welders. It's amazing to see - and more so because of the quality of the weld than because of his 'limitation'. But every injury is different and you just gotta find the system that works best for you.