Holy cats, that's awesome
Thanks for taking the time to share your experience of having been given that foundational training.
Beginning Yang style felt like all my long bones were broken every morning for the first couple of weeks from the Horse Stance - not moving. I was very athletic with good strength and conditioning, but it didn't help, and actually hindered most everything at first. "Musclehead..."
"The inside moves the outside"

- heard that for weeks while getting tortured with Wu/Hao postures; "Move but don't move"..."now move"