ueshiba and chinese martial arts
I understand some people like Bruce Frantzis say that Ueshiba learnt some ba gua zhang during the war. Indeed Ueshiba was a professor of martial arts at Kenkoku university in Manchuria for a few years so he must have had exposure to them. Then again some people say that Daito Ryu can be very soft and men like Horikawa were just like Ueshiba so he was not unique in Japan.
I was wondering whether people here think that Ueshiba might have learnt some internal material from the chinese. Certainly his approach is markedly different pre and post WWII and so this is one possible explanation amongst others.
What exactly are these similarities then and how do people think Ueshiba's aikido differs from the chinese internal martial arts