Erick's posts always make more sense to me when seen as strategy / tactics.
But the mechanical description of what's happening doesn't tell me how its being done.
I think there is a body skill involved which never gets mentioned in the descriptions I've read.
Do you think it's even possible to describe the body skill...the "how it's being done?" I mean, the way I see it, there's the left-brained-type (abstract modeling) of conceptualizing the series of events which constitute aiki waza and then there's the right-brained-type (spacial interaction) of sensing and performing the skills themselves. Thinking about how things are moving within the body (left-brained/physical mechanics description) serves as a guide for where to place the awareness so one can then sense and learn how to purposefully engage those skills in the space of reality.