At present we know that someone in Japan is teaching RSR but we just dont know who. Also we know that these teachers existed but we are having difficulty finding much out about them.
Several e-budo members are located in Japan or have direct contacts there. If you post your information here it might be helpful in tracking down this information.
I know him quite well and we have spoken of his background on numerous occasions but he rarely talks of his teachers.
Would it be possible for you to provide us with any more information about his teacher? Did Mr. Shortt study under him in the UK or in Japan? I am guessing that Okumoto sensei is not around to ask. Do you know where in Japan he was from, or last resided?
I did a CQC course a couple years back with someone who has taken seminars with Mr. Shortt and speaks very highly of him. I have also watched Mr. Shortt's video and found it interesting. In looking at the Ryoi Shinto Ryu Website, I found the historical information to be very interesting, but thought that it was odd that here is something like a sixty year gap between the last licensed teacher in the tree and current praticioners.
Best regards,
Bruce Mitchell