[Bagger Lance]

Nuke -

Your premise is (correct me if I'm wrong):
Swingers use pressure point 3 for extensor action to pull the clubshaft to the top of the swing and hitters use pressure point 1. Because of this, the flying wedge structure differs for hitters and swingers during the loading process. As a result the elbow naturally folds into a pitch position for swingers and a punch position for hitters.
The rest of your premise is that if a swinger has a pitch elbow, it is impossible to execute a hitting action from that position.

In my opinion, it may appear to work that way in your motion (per your video) but since you are starting with an unusual use of extensor action, several other components are going to be effected. I very much agree that all components flow together but I'm afraid you are starting with the wrong assumptions. But this wouldn't be the first time I'm wrong either.

• The pull of extensor action is not down the clubshaft, it is down the left arm. The pull of extensor action must be below the clubshaft plane unless you are completely zero'ing out the #3 accumulator angle.
• The two ends of the rope for extensor action are the left shoulder joint and the left wrist (flail).
• You can use use #3 to pull the left arm straight, but Homer warns of the danger in the extra pressure causing throw-away (flipping the clubhead). So he only recommends it for short shots.
• Elbow position in the backstroke is a function of clubhead lag loading and if the intent is to drive or drag. (See the video link in 6BMikes post).
• Swingers and Hitters can use punch or pitch elbows.

Maybe it would help to clarify "Extensor Action Takeaway" in 10-19-0
Folks like Yoda, Ted, and our Professional Contributors have had a lot more time digging this stuff out of the dirt than I have.

Others chime in, but there you have my humble opinion. I love extensor action, but I think you are putting much more into it than it really is.