2 Part Lesson - An Over Hook combined with the Cross Collar is a tightly woven control from Guard. Compress forward to release the tension, creating space to swim your trapped arm free. Holding your base and blocking the opponent's oncoming secondary hand, holds most his attacks at bay. The opponent will answer by creating a dangerous mid zone area - framing his knee inside to strike with the Triangle. The opponent's hips open to shoot his leg through. You must parry, and continue to pry open the inside space with your forearm, over enlarging the hole to drive your knee through.