Roger deceptively strong. Roger long legs. Roger good timing. No secrets, combination physical attributes, lots of training.
Finishing it is the hard part
I think you push the guy to his back quarter, more so than tilt him sideways at a straight 90 angle. My 2 cents from having played with this. And yah, I would agree with others that I don't think it is difficult to get some immediate results with this sweep...I think it is overlooked because it looks more like you leg-wrassle the guy over or something, not some beautiful butterfly sweep, but same result.
People putting their knee into my balls has always been the hard part for me.
Does Roger have any instructional sets he has done?
not releasing a DVD just to make some money.
Hoping he does Worlds so there's some fresh video of HIM, though. I think i've watched every recorded BB match of his and at least twice of all his fights at the worlds.