[Burner]

Originally Posted by Burner

Consider, === as the hip plane and / as the clubshaft plane and then explain how the horizontal plane, rotary, shifting of the former can initiate the inclined plane downward motion of the latter.

burner,
set up the exercise i described earlier with the club at shoulder height...with the club all the way back, turn just your hips and watch how the shaft moves "downplane" toward the imaginary shoulder level ball...now incline the plane by bending at the waist and then turn your hips back and watch the shaft and your trail shoulder move back "upplane"...the "secret" is that your hips aren't horizontal to the ground during a golf stroke.
hcw

I referred to the horizontal plane of the hips and inclined plane of the lever assembly only for the sake of simplicity of expression.

In reality, the only parts of the, so called, "hips" that move are where the head of each Femur is located in the socket at the base of the pelvic girdle.

Movement of those parts does not, in itself, cause any movement of the arms per se - it merely alters the structure, by Axis Tilt, of the entire assembly: this being a necessary pre-cursor to, not a cause of, the arms swinging the club down, out and through impact.