This is definitely the last in the series of Sudden Violence. It was Chang's idea that if one could, sort of defend oneself against weapons then the empty hand defenses would come easier. And this is true. Chang taught me five methods against weapons. A short stick and a long stick which are indicative of just about any type of weapon.
He would use his fingers as stabbing spears and his knife edge palm as well as his elbow in these methods. He said that one strike would stun, the second would knock out while the third would kill. Although these methods are not traditionally "Sudden Violence" methods, they still use Sudden Violence as the motor so I have included them here in this series.