So I mentioned that Grumpy seems to hate the Shinmeikan dojo. A little light has been shed onto why that is. Apparently quite some time ago there were 4 leaders of Shimpukan, but they were getting on in their years, so someone (perhaps Grumpy) relived them of their leadership roles. They weren't kicked out of the dojo, but 3 of them, apparently to keep their pride, refused to come back. These three are now teaching at Shinmeikan. I don't know if they started the dojo, or if they just joined up. The fourth one still comes to Shimpukan, but I've heard several people say that he does "funny" kendo, which is a mixture of old age and the "traditional" kendo which he was taught when he was young.