2 Part Lesson — Marcelo teaches an important lesson that he learned from Boxing: [I] In the midst of Hand-Fighting, take the initiative by "Snapping" on a strong Collar & Elbow Tie to begin the Hook Sweep from Butterfly. An audible cue will indicate whether the technique is performed with the proper intensity for successful execution of the sweep. You should hear the "Snap" of the switch from Hand-Fighting to the Collar & Elbow Tie. [II] If his hand slips free to post against the Hook Sweep, connect again with the Collar & Elbow Control, but on the opposite side of the initial sweep. You have to build up the ability to switch your hips from one side to the other in coordination.