Kano is interesting, if he did what he did today he would be called a fraud and the art bogus. Instead he is called a genius and innovator. He only studied for 4 yrs total and created Judo at the age of 22. That is also why I ended my post about does the art fit what YOU need it to?
good post punisher. kano is an interesting case, for a number of reasons. one, while he is the grand poo-bah of judo, i don't think anyone would argue that he was the greatest judoka. to me, this says that he definately had something to teach. it is also a good indicator of whether or not the style was worth creating. is the creator interested in knowing more of this particular martial art that anyone else, & therefore holding back knowledge? or does the style progress with each generation? if the latter, that tells me that the creator had ideas worth listening too, even if he didn't have the most credentials on paper.
another interesting thing about kano is that judo inadvertantly saved jujitsu. jujitsu wasn't initially seen as a different style, but a new form of jujitsu. kano's efforts to win a teaching contract with the japanese police by staging public, high-profile competitions renewed interest in a dying martial art that was seen as rustic & outdated by post-meiji japan.
so in short my point is; if a created style is good, then it's often very good. if a newly created style is bad, then it probably won't last more than a generation or two.
jf