Control From Behind M Is Going to Be a Dominant Angle

If your opponent cannot look at you or face you, they are very inhibited in their ability to attack or defend. Back mount is probably the most obvious example of a dominant angle. If you're in someone's open guard, angles are going to be very important. A finding these dominant angles and and redirecting your opponent's hips, usually by using their legs as a lever, is going to open up guard passing opportunities"