[Yoda]

Most tour players strike the ball better than the rest of the golfing population, yet their finish does not reflect the above nor the finish depicted by Diane in 8-12.

Any thoughts on this?

Remember, Chapter 8 refers to the 12 Sections of the Stroke. The Sections describe general boundaries, not specific alignments. So, basically, for purposes of defining Section 12 Finish boundaries, any reasonable Finish position after Follow-Through (Section 11 / Both Arms Straight) would work. Use Boundaries photos for the purpose intended and not as illustrations of specific Component alignments or relationships.