[Yoda]

Never really saw a yes or no answer to the original question......

If two players wind up at impact separation with the clubhead, face and shaft in the exact same alignments all at the same speed and hitting the ball in the same spot on the face with every other alignment matching with the only difference being that one player arrived there after a Horizontal Hinge action and other player arrived there after a Vertical Hinge Action.

Which shot has better compression and why?

I think they would be the same.

[Color and size emphasis by Yoda.]

And now at last:

Your question is nonsensical because it is based on a specious premise.

spe·cious (spshs)
adj.
1. Having the ring of truth or plausibility but actually fallacious: a specious argument.
2. Deceptively attractive.

Let's back up a bit and help me get this straight:

You think a Clubface could come through the incredibly violent Impact collision in two distinctly different ways -- one Closing Only and the other Laying Back Only -- and, even in just 3/4 of an inch and 4/10,000th of a second, there will be no difference in the Separation alignment?

Study Sketches 2-C-1 #3 and 2-C-2 #3, and learn the truth.

Oh, I forgot, all that Chapter 2 stuff is now just "junk science", right?

Wrong.

Nevermind . . . Let's leave the Land of Oz and head to the practice tee. Watch me hit two delicious little pitch shots. I'll hit both with the same descending blow (Clubshaft Control) and with an identical amount of force (Clubhead Control). Both shots will fly dead straight, but the second will fly distinctly higher than the first. Now . . .

Why would that be?

Answer:

Because, through Impact, my Left Wrist (Clubface Control) executed a totally different Motion. And that totally different Left Wrist Motion produced a totally different Clubface Motion. And that totally different Clubface Motion produced a totally different Separation alignment and Ball Response. Putting it simplistically . . .

Impact matters!

The fact that the ball is fifteen yards down the fairway before the player feels that Impact is immaterial. The pre-selected Left Wrist Motion is programmed as early as the Address Routine for flawless execution through Impact. The work -- the Computer's precision Programming -- was done long before and the Ball's flight is now its manifest result.

In no way does the brevity of Impact obviate the Left Wrist's vital function and predictable result.

It may, however, obscure it.

As apparently it does to those who would deny its role.