2 Part Technique - The Frame Escape is ideal for recovering back your Underhook from Half Guard, however your opponent can do precisely the same technique against you from the top to reclaim it back. Rather than repeating this battle over and over, switch gears by controlling his wrist with both hands and crossing his hand low for the Cross Arm & Belt Sweep from Half Guard. If you encounter difficulty in bridging over with the sweep, look to widen his base with your foot placed upon his knee to split him apart for the sweep. When you land on top, look for the underhook once more, but this time make sure it is tighter than what you saw from your opponent earlier.