Dan Harden wrote:
I'd also caution that the mental aspects of this repetative traning are whats paramount
You mean, like training by yourself and imagining someone pushing and pulling?
What you are describing with the wall seems like a skill that combines maintaining a fully connected body with full mobility. I'm getting glimpses of parts of both of these things, but mostly in the context of carrying my own body weight, not interacting with force (either real or imagined).
My body is starting to suspect that mobility, stability, and connection go hand in hand. If you are getting one without the other, you're training badly.