I am familar with them but haven't met them personally. Do these two have a dojo in Manchester? I believe they're man and wife and both are highly experienced and graded.
Personally, I trained with Dennis Bartram for quite some time. He's a 15th Dan now, although he was a 10th Dan when I first met him. I also studied Amatsu with him for a year. That's the healing therapy that goes with Ninjutsu. Hatsumi is the leading authority in the world for it, Dennis Bartram is one of the leading authorities in the UK for it. Brin and Natasha are familiar with him.
I also trained with Mike McNeilly in Liverpool for a while. Mike is absolutely supurb with weapons, especially swords and sticks.
I now train with a guy called Keith Watkins, who trained with Dennis for 20 odd years before going his own way.
I find all the styles are different, but each dojo takes something different from the ancient nine scools of taijutsu.
Sorry to mention my books, but I did write about my journey in Ninjutsu in my second book, Always A Marine. I didn't go to Ninjutsu to learn how to fight, I went there to learn how to stop it and to control the aggression I had during my time as a Royal Marine.
http://archive.thisisthenortheast.co...16/214137.html
Best Regards
Steven Preece