Originally Posted by
Ken Cheng
With the Gu Long freelancers, the author seemed to solve this problem by having each of his freelance characters be the inventors of their own martial arts...or simply not explaining the origin of their martial arts. Where did Lee Chum Foon learn his peerless dagger skill from? Luk Siu Fung his peerless finger technique? Sai Mun Chui Sheut his supreme sword technique? Gu Long invariably declines to explain. He simply presents the heroes, as is, complete with their wulin-dominating skills, no questions asked.
That's different from Jin Yong, who typically describes how one of his heroes comes to be associated with a particular martial arts school or clan and learn their best martial arts.