Studying Henry Akins ‘Mind Blown’ online content, realized there were two separate and distinct underhooks being used:
- Stretching the arm and pulling the shoulder underneath: This is used to come out from underneath your opponent and is primarily and escaping mechanic.
- The second underhook is where you connect the arm to your opponent and bridge, transferring the power of your bridge into you arm to reverse the top player in one motion. In this case the arm DOES NOT stretch because we want to stay connected as we bridge.
In summary, evaluate whether we are trying to reverse the opponent or escape (likely coming out the back-door), and use the appropriate underhook mechanic.