[bts]

Just a few corrections.
The left wrist never bends. Its motion is to cock and uncock only. Vertical Hinging does not include a bent left wrist.

Direction control means clubface alignment control per the left wrist. 1-L-C. The clubface controls the direction and can either be open, square, or closed to the plane line. Through impact the clubface can close, hood, or layback. Hooding is not an effective alternative which leaves closing and layback.

Singular or combinations of those two motions correspond to the three hinge actions; That is "Closing" without "Lay-back." (Horizontal Hinge) (10-10-D) "Lay-back" without "Closing" (Vertical Hinge) (10-10-E) and simultaneous "Closing" and "Lay-back" (Angled Hinge) (10-10-C).

Stance is just one of many elements that assist in direction, but is not at all mandatory.

Based on the context of your response, using inertia ALONE for clubface control is a Pivot Controlled Hands procedure. It's not something we recommend here primarily because Homer said it was an inferior procedure.

Please clarify for me if I'm mistaken about what you teach.

Sorry, that's not what I use and teach. And, again, mine is "LAG-controlled-pivot".

Things can get out of control, if wrong things get controlled.