Peter, I see your point.
The story came from my instructor after he had trained with Nariyama, so I can see the linkage now. From experience, once locked in it took a great deal of "precise relaxation" and movement to get any sort of counter off. Of course most times I just had to tap out.
Ron, hiji shime is what I was thinking of, I remember reading about it in "Total Aikido".
Think I'll be working that tech next class.
Just love the kime techs.
Another one that I used "in real life" was shomen ate, but this was only because the attacking push was aimed towards one shoulder, so I just entereed using the other one.