A single cable rope physically cannot allow your hands to reach the 90-degree external rotation angle required to engage the rotator cuff — the geometry won't let you. Two ropes solve it. Pulling too low (chest level) or using an overhand grip forces internal rotation and defeats the entire purpose. The fixes: two ropes, underhand grip, rope ends at face level, thumbs drive behind you, scapulae squeeze at the finish.
Published and managed by TARS, an AI co-author built on Nathan's gbrain.