Rewind!
Going back to Nathan's earlier post and the statement Chris made about formal transmission...
IMO, a mainline art that is formally transmitted (speaking of koryu here), may have a paper headmaster that is not respected by peers in adjunct or parallel lines of that art. However, as can be seen in TSKSR, formal transmission retains the essence of an art that allows the next or future generations to learn the pieces necessary to relate the original combative elements of the art in a near perfect manner (I can't say perfect because I nor anyone else have actually seen the true combative applications of any of these arts). Both Otake sensei and the late Don Draeger were able to take what some had viewed as a lackluster koryu style and put the piss and vinegar back into it. No doubt this was a result of the formal and full transmission of the art across generations, despite any lack of combative intent in interim headmasters.
Sometimes, it's the practitioner who has access to the real/ true goods who can push the boundaries of an art while staying within the true essence of the ryu.
Your's in health,
Brian Wagner
Daito-ryu aikijujutsu
Kashima Shinden Jikishinkage-ryu heiho