Matt is a 2008 Judo Olympian and Australian Purple belt Submission Grappling champion, for more info on learning more from Matt and his one on one training go to mattdaquino.com. If you have any questions please don't hesitate on contacting me I'm only to happy to help.
Great video however from the sit in position it wouldn't even be good for kids to get in the habit of doing. I teach an effective varation that is the the same load up position for standing koshi grurama except you drop one knee while still pulling over your hip and turning your torso creating lots of tork almost like a makikomi. Any how great technique; great video
mccartertrio 1 year ago