[KevCarter]

According to TGM Book, a (Duel) Horizontal Hinge provides the perfect strike because of the same line of compression from impact to ball separation. Because the golf ball can only deform (Flow) in two directions when perfectly struck, the ball remains thicker on the line of compression. I can only guess that this is what causes the deeper resonating pitch "crack" when all of the space is squeezed from such a large section of the ball. Or is it caused by the return flow?

But does that mean that Hitters don't typically make that sound, because Layback Flows that minuscule amount away from the Line of Compression?

Daryl,

I'm not learned enough to answer your questions, but I find them very interesting. In my opinion, from where I am in my journey as a hitter, I am making a totally different sound during the line of compression than I have for years. I am loving it. Perhaps I am not fitting the exact mold of a "hitter" though. I have a feeling that I am still employing some horizontal hinge action. My feeling of "hitting" may just be a better use of the magic of the right forearm on the back stroke. It may be easy to confuse the two motions for rookies like me.

Trying to find a way to get to the swamp...

Kevin