2 Part Technique - After an opponent knocks you flat onto your back from butterfly to pass your guard, immediately remove his grip on your collar(s) with both hands and apply 2on1 Control. Make sure to tuck his wrist under your pistol grip so his palm faces himself, so as to not allow him an easy path back to re-grip. Reinsert your outside leg back inside for the butterfly hook and use your grip on his elbow to help launch your hand onto his belt. Use this Cross Arm and Belt Control from Butterfly to execute a sweep by tucking your head underneath his own, and using your hook to propel him overhead. If he manages to standing step pass your guard, don't let go of the 2on1 control and use it with the hip escape to make space and reinsert your butterfly hook - finishing with the Cross Arm and Belt Control Sweep as before.