This is a subject that greatly interests me. I studied with the WJJF for a short time about 6 years ago. Rather naively at the time, I assumed it was in some way a traditional Japanese system. I seen some funny things in class that made me wonder though. First clue was the "Sai Kata". I had read that Sai were used in kobudo systems, but I wondered what on earth the Samurai would've been doing using farming implements when they most likely would've had access to the best weapons money could buy. I mean, would Sai be that useful in a feudal war?
All of that started me wondering what it was I was doing... Plus the WJJF seemed pretty money driven, which was a red flag to me. So I did a bit of research, and after a while, came to the conclusion that you did: Basically it was a mixed system designed by some guys in the UK that wasn't really related to traditional Japanese systems!
There is some info on this subject on E-budo, check there.
If you like I can send you a couple of things I have on the subject. Its not much and you may already have it, but it might help.
FWIW, there are some genuine Koryu classes in the UK if that is what you are interested in. Here is a prominent group that is def. worth checking out:http://www.hontaiyoshinryu.co.uk/index.html
I know a few more places too if you are interested or want to contact them for info on your blog. Would be very keen to read it!
Good luck and keep up the good work.