In 2-R I believe Homer is referring specifically to “the pictures in this book” not pictures in general however I think I see what you are getting at.
The wording “clubhead” is taken from the following passage where Lynn is emphasizing the importance of pressures in the hands.
( The video is here.
)
“It’s all about pressures in your hands and it is so elusive because once you have thrown the club it is gone. It is off on its own. You have to sustain the driving pressures in your hands and once you’ve thrown it you’ve lost it. You’ve got to continue to drive the club. The great players continue to drive the club. Almost everybody else, even tour players tend to throw the club a little bit. They are very expert at throwing it but they still have a thrown clubhead on their hands instead of a clubhead that they are continuing to drive. And that is going to be your goal over the next few years and for the rest of your life, learning to create and then sustain steady driving pressures.”
But it is the grip and hinge action in particular that I’m trying to identify. The left hand appears turned to the top of the Clubshaft and the right hand vertical so I was thinking 10-2-D, strong double action but I could be wrong.
Yes, I was referring to pictures in general. The audio describes the need to get the left arm, clubshaft and especially right forearm their impact fix alignment at impact. This would be done through the pressure points. Again, I believe his focus was on how the pressure points allow the club head to be properly released. From the looks, and again, we're past follow through, I think it's a strong single grip, but with vertical (maybe angled) hinging.
Hope this helps - it is hard to tell from that position, but I've watched these videos many times (as everyone has) and I don't remember any discussion of grip beyond strong single.
I think the idea of delivering the entire lever assembly into impact together is the whole idea with regard to clubhead 1-L-8.
However, I would not emulate the hinge action shown - The more I look, it is a vertical hinge action and therefore clubface manipulation.
I would do this:
Work to bring the entire lever assembly to release, and if using standard wrist action, use the impact swivel to bring you into impact. Then using your choice of hinge action, move to follow through (both arms straight).. THEN, employ the follow through swivel to bridge between followthrough and finish.
The picture at the top is well past followthrough so therefore, is not accurate, but is describing the lever assembly being to and through impact with a flat left wrist.
I would youtube some of Lynn's or any swing vision tour swing and you'll see the
sequencing of #2 and the #3 accumulator releases.
So, I think it's an abberation!! I'll leave agnostic to you....
Hybrid Mode
