That's certainly one way to look at it. The other is something like this. One is a man who has encouraged the spread and evolution of the style and traditions of his teacher and is refrenced by military special forces units in regards to awareness and stealth; the other is a man who is apparently unwilling to let his style be exposed to any public scrutiny, and from what you've said, is perfectly content to let it die with him. I appreciate the amount of time and energy you've put into this Silv, however eveything you've produced leads me to an exact opposite conclusion. We're both predisposed to totally opposite viewpoints, and unless there's a positively quantified scientific study of the records both men have this is just going to go back and forth with no real end. There's also the very real possibility that both linneages are based from Iga shinobi and NEITHER is the "sole" inheritor. One just might be more politically acceptable to those funding the museum than the other. Not to mention all the controversy over which one is the "real" source of ninjutsu information creates interest. Interest creates tourism, tourism creates money. It's in the local governments best interest to keep the controversy going. So while I don't doubt there is some excellent knowledge and exhibits at the museum, using it as your only criteria seems no less limited than someone who believes everything a congressman or senator says.