Another Wing Chun attacking hand is Pek劈, which means cop. In the second section of Siu Lim Tao we perform Pek with both hands. When we use the Pek, we must strike using the outside edge of the hand, close to the wrist. The thumb should be bent and closed to the palm. In the second section of Siu Lim Tao we perform every technique with both hands. I once asked student how to apply the Pek and he said it was for hitting two opponents who walk up behind you. This made me laugh as this situation will never arise. Even if two people came up behind you, they are never going to the same distance that makes it perfect to use the Pek with both hands. Also in Siu Lim Tao we do not move the legs, once we have opened the stance, so it is just training. No, Pek should only be one hand at a time.
When we use the Pek, our body will be more to the side. For example we can use Bong Sau 膀手 to divert the opponent’s punch, our Wu Sau護手 can becomes a Laap Sau 擸手 and then the Bong Sau comes back and become a Pek and attack the opponent’s throat – you can imagine the result!