This installment was fun to read! Some interesting nuggets in there.
"June 28th, 1965
I became able to do techniques like this in my forties, when I think about it now I was using strength in my thirties. It was the same at first in Daito-ryu, I was just twisting my arms, there wasn't any throwing with winding in the form."
Was "winding" the literal translation from the Japanese?
Yes - I don't know if it's the same kind of winding that you're thinking of - but the pairing with a contrast to "twisting" is certainly suggestive.