Kashiwaya Sensei starred in a video on ki-aikido in Brasil in which he makes several interesting assertions. Part of the video involves an exercise I recall fondly:
In essence you cut a piece of bamboo with the bokken. In this instance he has balanced the bamboo on two students' heads, demonstrating the cut does no damage to the bamboo holders. Earlier the same technique is executed with the bamboo held by paper supports, and the paper is not disturbed.
Impressive. Hirata Sensei had us all do this back in '71 or so, and it was quite exciting to perform. There are some technical aspects, so absolutely do not do what he is doing in this pix. Some serious injuries if you do not know all the preconditions. You'll lose friends, or students. The whole video -
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