The initial principles that he teaches Linghu Chong which were to adapt the sword stances (right before he teaches DG9J) with slight variations in order to connect the stances together greatly improved his skill. However, this seems like a really, really basic principle that regardless of whether you are the Qi Branch or the Sword Branch you should be using. Why didn't YBQ teach LHC earlier? I can't imagine an expert like YBQ limiting himself to stances that only connect to other stances if they end and start at certain positions, this would cause the number of changes and permutations to be drastically reduced. Does this seem illogical to anyone else and only used to further the plot, or do you think that YBQ really doesn't understand or teach such a simple principle?