This is our Principle Based Response (PBR) to a powerful low line stab. It allows you to protect your core, block/evade the blade and move you off the center line using one gross motor skill response. As you can see in the video practicing this full speed without pads can be very painful because of the default targeting of the large nerve bundle that is situated int he forearm just below the elbow. Very often in training the weapon will go flying in response to the strike. You will want to wear pads after doing this a few times. Once you have blocked or evaded the initial stab you can use whatever skill sets you may have.
Video of STABPBR - Photobucket - Video and Image Hosting