ONE TIME OFFER: Add Matt Arroyo's Back Attack Blueprint (Digital Version) for only $57 (almost half off...Normally $97) This is a proven system to finish even the best grapplers from the back. A blueprint of exactly what to do. It is the perfect marraige to the Ultimate Grappling Hacks which does not go in depth about the back position. This discount is only valid on this page right here right now. Click the check mark above to automatically add to your order.