[Mike O]

Ben Doyle talks about the essential transportation for a swingers lag being the pivot. Doesn't a hitter also need transportation for his lag? Could that be a combination of the downswing waggle's initial hip movement, combined with the initial shoulder drive down the plain, aka 4 barreled hitting?

Alot of issues to cover here- to touch on a couple.
First:
If the above is correct or not- One must understand that you have described mechanical features of the movement - that shouldn't be used as procedural ques for performing the movement.

Second:
7-12 Pivot- 2nd Paragraph:
For the Hitter Mr. Kelley starts with:
"It is the massive vehicle which transports the Power Package Assembly to the launching pad and back-up support for the Hitter's driving Right Arm (6-B-1)."
Then he continues on in regards to the Swinger:
"It is the massive rotor, supplying Angular Momentum for the Throw Out power transfer to the Swinger's Left Arm (6-B-3).

The final sentence of that paragraph in the 7th edition applys to both Hitter's and Swinger's:
"The Pivot along with the Arms and Hands, supply the Basic Hinging which The Flat Vertical Left Wrist individualizes into the Three Hinge Motions of the Clubface."

I don't think that you will find Mr. Kelley using the concept of the "Pivot transporting lag".

Finally- when reading section 7-12 paragraph #2- It is important to:

First, understand that he is referring to the more common references of a 3-barrel stroke- accumulators 1,2,3 for the Hitter and accumulators 2,3,4 for the Swinger. (The paragraph wouldn't make sense in relation to a 4 barrel stroke)

Second, since the Golfing Machine was intended to categorize any and all strokes- you need to understand that he is referring here to a common full shot- alot of the above doesn't necessarily have to be so- for zero pivot strokes, different patterns, etc.

To repeat:
For the Hitter - the Pivot would transport the "Power Package Assembly" Read his words carefully- "the vehicle" transports (Hitters).

The Swinger would not JUST transport- The Swinger would have an initial acceleration that would create pressure on pressure point number 4. It's the massive rotor transferring momentum in the left arm.

Now I'm headed back to Bucket's Trunk where I belong. Take a shower man- I can smell you from here!