I first thought of writing something on this theme after realizing that contrary to what I thought initially, there were some interesting differences in the way my techniques were performed and intended according to whether I was demonstrating them as a teacher, or performing them as a student. Of course, for the experiment to be meaningful, these techniques had to be applied on the same partners each time. What struck me most is that the sensation was totally different according to the status I was assuming on the tatami.
(Original blog post may be found
here.)