It appears Bucket is snoozing

(Hey, I've gotta find a way to use every one of these emoticons!)
2-H Second Paragraph 7th Edition
The spine, between the shoulders, is the center of the Shoulder Turn only, not of the Left Arm, except by specific extension of the Swing Radius. Swinging from the Wrists, the Left Shoulder, the Right Elbow, the Waist or the Feet, show it to have just too many exceptions. Through the “Head” Pivot Center is recommended, it is not at all mandatory. The important thing is that the true Swing Center for ALL COMPONENTS is around a Hinge Pin with one end at the top of the Stationary Head and the other in the ground, precisely between the Feet, with no regard for Body Location or Position at any time. “On Plane” Right Shoulder Motion is possible only by tilting its axis, the spine. See 7-14. In this area the Left Shoulder is helpless. The geometry of Shoulder Control deals only with the Right Shoulder, there are no guide lines for Left Shoulder control of the Right Shoulder.
Remember what i said in a previous post- pay very special attention to the fonts that he is using- the words 1) AT, 2) ALL COMPONENTS, and 3) Body Location and Position- are KEY elements that you want to notice and understand why he is emphasizing them.
Again, I'd keep in mind that he IS addressing the issue of head still or turn around the spine in this paragraph. He probably had people debate the same issue with him. And I know from audio that he was aware of the Head Still camp and the turn around the spine camp- but he "preferred the concept of Head still" so that your vision wasn't altered and looking down at the ball - if something changed then you knew that you moved.
Here's my quick analysis/translation:
1st Sentence: The Spine is the Center of the shoulder turn- not the swing.
2nd Sentence: Swinging from the wrists only - say right around the green, or the "left shoulder only" like in the 12-5-1 basic motion- etc. - those don't have the spine as the center of the stroke.
3rd Sentence: Through the head PIVOT CENTER is recommended but not mandatory. So for a
pivot center the Head is recommended. Because the eyes stay still and if the perception of the ball on the ground- changes then you know you moved.
4th Sentence: The important thing is that the true Swing Center for ALL COMPONENTS is around a Hinge Pin with one end
at the top of the Stationary Head and the other in the ground, precisely between the Feet, with no regard for
Body Location or Position at any time.
So he is saying - Hey, the spine isn't really the center of the swing, the Head isn't really the center of the swing- NO particular body part is or has to be the center of the swing- the important thing is that there is a center and that ALL COMPONENTS rotate around it. That Hinge Pin would go from precisely between the feet to a point at the top of the head- Notice he italicized the word "at"- that is crucial in my mind- We know up to this point that he is not making head still mandatory because we've got to consider the "rotate around your spine camp"- but typical to Mr. Kelley - it wasn't you could do either, although you can- No, he's looking for the principle that encompasses them both. That's the Hinge Pin that say goes from between the feet to at the top of the Head- say at impact fix- from there you just need to rotate around that- however you want to do it. Without regard to Body Location or Position i.e. without regard to whether the head stayed still or rotated- obviously that refers to any body location or position but in regards to our discussion here- the head seems to be of particular importance.
5th Sentence"The On Plane shoulder motion is only possible by tilting its axis, the spine"- Kind of a final statement that the spine tilts - so it really isn't a center- as opposed to the Hinge Pin concept- and then he flows into finishing the paragraph identifying the on plane right shoulder motion.
My final thoughts: From a player's perspective - this is really splitting hairs and no place for take a side/stand. When you look at video do you want your head flopping all over the place. If your biggest problem in your whole movement is whether your head is turning slightly off the ball or staying exactly still- then you're probably a plus 2 handicap- and Mr. Kelley is saying it doesn't matter dude! As long as you have a centered motion! For me personally it just seems like there are better things to worry about- this is more of a mechanical/theoretical discussion.
That's just my "guess"- or my perspective- someone could have a completely different perspective- and I'm not thinking of anyone in particular - I really do mean someone- anyone- and that's great because this just isn't a subject matter that I could see spending alot of time and effort "arguing" about. Different ideas - post them for others to learn- that's my only reason for posting is to hopefully shed some light on an area that someone is confused about.
Finally, On the practical side I would really say that the "Head Still" is a result of an efficient movement- if it is moving then you need to ask yourself why- bending your knees too much?, etc. etc.- To focus on keeping your head still without focusing on the elements that make it move- really is a dead end road. Head movement is the effect of some cause- trying to hold your head still when it is moving really is just a bandaid manuever.
In the Golfing Machine you would be primarily concerned about what the shaft, head and face are doing- of the GOLF CLUB - BUCKET!