Comment “GUIDE” to download my free guide breaking down this nervous system training system This leg abduction drill from BJ Penn’s camp looks simple, but the intent is everything. Marv Marinovich wasn’t trying to build static hip strength here. He was training elastic control and rapid force re-expression through the hip and oblique sling. By forcing the leg down eccentrically and demanding an immediate rebound, the nervous system learns to absorb force and fire back without hesitation. That st