[Daryl]

BerntR, I couldn't agree more with what you're saying. It also goes that the Bottom edge of the Clubface is moving faster than the Top edge and that the inside bottom edge of the clubface will cause more compression than the outer upper edge. And all of this from observing a simple centrifugal force application.

We agree that there are forces during Impact other than Glancing Spin and a little friction.

Glancing Spin doesn't explain why a Draw has more carry than a Fade nor why a 7 iron compressed shot travels farther than a glanced shot having the identical clubhead speed. I can speak from experience that it's 10-15 yards and that's when both shots are straight at the pin.

I can work the ball anyway anytime but I play 95% of my shots dead straight and all of my divots point a hint to the right but I play the Ball forward.

I found a video of a 3 Iron strike a little more than a year ago and I've been studying with lines and different layouts. I think that the picture sequence shows how well the clubhead goes into the ball about a 1/4 inch before the Ball begins to move forward. Then it rebounds. The Clubhead appears to be traveling horizontal to the ground and the Clubface is closing. The Impact appears to slow the Clubhead but not the Hands.