REPHRASE:. . . . Does the Right Elbow Alignment REQUIRE a particular Hinge Motion assuming Rhythm has not been disturbed?
Good question.
It would be interesting to check whether Dustin Johnson rotates his pp#3. He arches his wrist from the top. Maybe that enables him to keep pp#3 orientation aft all the time. With a pitch elbow, the degree of cupping /arching could have a huge saying here.