Bahhhh,
This post may stray but Mr. Keen's post pushed my button....You say tomato I say tomato. I get suspicious anytime something's history is called mysterious. Aiki this aiki that, who's got a corner on aiki is up for debate. If a ju-jutsu guy cannot know aikijujutsu, then how can an aikijujutsu guy know ju-jutsu. Semantic you say, why yes I agree. Most ju-jutsu out there is a hodge podge of junk, most aikijujutsu out there is a hodge podge of junk. Good budo/bujutsu is going to have more in common than they do different. Secret techniques and the like are hog-wash.
One of the reasons I like history is the dose of humility. You figure out quickly that nothing is original everything has been done before. Eventually I quit trying to be original and begin striving to just be good.
Of course, this is only the opinion of a simple ju-jutsu guy.