Wow this attack is awesome! I was using knock knock and maulered one of the gun runner guards. Since it has a knockdown chance and knock knock has some weight to it, it tossed the guard into the air. My 2nd vats attack was also a mauler, which landed behind the airborn guard to hit him again for the same effect, throwing him the other direction. I almost want to make a melee only just because of the beauty of this vats!