Pivot center

[Yoda]

While it is biomechanical possible to maintain the clubhead speed through impact it is impossible to maintain the brute force moment from image 1 all the way through. And when the moment decreases , the shaft starts to release. And since the club is a highly resonant system with moderate inner damping, the club will now whip forward - as it does here. This is not an ideal occurence since it means that stored energy is released long before impact. It is kind of similar to the dreaded throwaway. But given how we are built it is perhaps unavoidable in a swing that starts hard and fast down.

Here you go.

Now this looks excessive.

Boy Howdy.... That's some massive toe down deflection.. was he playing hickory?

Thanks, O.B. Left. We will use your upload and contrast with my own image in my post #202 (and its exception).