Braulio teaches how to pass the de la riva guard with the leg drag. He explains how powerful the belt grip is for controlling your opponent's hips when in the leg drag position. He also demonstrates how tight he stays when attacking the leg drag so his opponent can't circle their free leg in front and push him away. He points out how important it is to turn their hips away while attacking the leg drag to prevent them from countering.
Links to other Parts:
Part 2,
Part 3,
Part 4