It could be because I am gun shy of how KJN has reacted to these lines of questioning in the past. He is very guarded about his past and his knowledge. I do not know who his instructor was, all I know is that he "joined" the Moo Duk Kwan in 1960's. I know that he had extensive training prior to "joining" but I have no idea from whom or in what style. At a black belt instructor class 10-15 years ago, my sahbumnim talked my father (the lowest ranking black belt at the time) to ask our KJN who his master was.. . With a very stern face, he said "KIM." and that was the end of the conversation. I know that he has "softened" with age, but I fear the tongue lashing that could ensue.. . I admit I'm gonna have to get over it and just ask, otherwise the knowledge may be lost in time.