Yea I've watched the shit out of his website and he's really good with articulating details, but the 'secret' that he says will 'change your mma game forever' is something I've seen from four or five different professors, including in Advanced Rubber Guard. Block the ankle, pull the hip. The one detail that stood out was pulling the guy over his shin as opposed to over his knee. It does appear to be an art seeing as how people can roll to defend four, five, six times before finally having their balance broken, the timing of which few in the world have truly mastered. Maybe a Ben Saunders or Clark Gracie that pulls it off at high level comp, so it can be done.