Responsibility of Limbs

Each limb has a distinct role in executing the folding pass effectively, which is crucial for controlling the opponent and successfully passing the guard.

1. The inside arm, or front side arm, can grip the collar or bicep. Its main job is to prevent the opponent's knees from returning to their chest, using the tricep to block the knees and pulling the elbow back.
2. The head should be tightly placed against the opponent's chest, making them uncomfortable. It can be used as a crossface to restrict the opponent's movement.
3. The backside arm is tasked with blocking the opponent's hip escape. It should grip the back of the gi, belt, or pants, with the elbow clamped by retracting the scapula and engaging the lat muscle.
4. The legs are the most active part of the pass, transferring weight into the opponent through the chest and shoulder. They should sprawl wide, with the insides of the heels on the mat, to apply dead weight and organize the opponent's legs through various techniques like stapling, splitting, shelving, or slicing.

By coordinating the limbs in this manner, the practitioner can effectively cast their weight through the chest, pinning the opponent's femurs together and driving a metaphorical stake through the middle of their thigh.