Peter A Goldsbury wrote:
Do you have an insight into the Founder's reluctance to teach weapons outside of Iwama after the war?
I think this is a complex question and there are no ready answers. In the column I have tried to present the evidence that Morihei Ueshiba considered Iwama to be a special place, where he consorted with his tutelary deities. In my opinion, he regarded his own training with weapons: sho-chiku-bai no ken
, to be an essential part of this association--at least at this time. Notice that I have not said "taught". Rather, he appears to have trained with Saito Shihan as his partner.
Apart from the Kumano Juku, of Mr Hikitsuchi, Iwama seems to be the only dojo where was such an intense focus on weapons, especially sword--at least for a decade or so, until he started to visit other places, and until weapons came to have lessening importance later in his life. There is also the undoubted fact that he had in effect given over the Tokyo Dojo to Kisshomaru and did not interfere with the running of the dojo. Of course, he would teach there, and taught there increasingly often, but the Tokyo Dojo was not a laboratory/shrine for him.
It is true, however, that nearly all his senior students did train with weapons--and developed their own systems. Saito Sensei was preeminent, but not the only one to do so.
I have not really answered your question, but I do not think that Ueshiba's occasional anger at bad practice amounts to a total ban on teaching weapons outside Iwama. I think you would need to search out the interviews with the senior students like Tamura and Tada Shihans.