do you have any clips? I had a hard time imagining this. What i imagine is: no faceplant, just rotate the body and keep rotating until uke lose its own balance, the cut can be gentle as uke has already been destabilized enough.
Sure, of the latter spinal locking variation. Here is a couple of my students. She is doing (our understanding of, I didn't have the pleasure of training with Mr. Stevens, or his son, Moe, yet - I got this from Nick Lowry) the Merritt Stevens self defense system, which I put in our curriculum for a practical self-defense approach to converting kata to SD.
I agree with you, Janet, btw.