[strav]

Hi Everyone,

I want to a moment to introduce myself prior to asking my question. Basically, I am a PGA Apprentice, committed to being a great instructor. With that, I feel that understanding the science behind what you say is necessary. For instance, we know that having an FLW at impact is important, but I seek to understand why, hence my personal quest in becoming a GSEB. In my mind, that starts with guided self-discovery and understanding the big concepts.....I'm excited and looking forward to the journey.

Two questions re 1-L:

11. "Clubhead force and motion is on plane at right angles to the longitudinal C.O.G and varies with the speed, mass, and swing radius."

What, in the golfswing is longitudinal COG? or is there a better way of explaining that aspect of the machine.

20. For any given line of compression (through the ball) every machine must produce identicalimpact alignments.

This one I am just having a bit of trouble conceptualizing. Does this simply mean that regardless of the shot being played, the correct impact alignments are mandatory?

Thank you all for your help in advance, and I look forward to the journey!

Two great questions wilsmatt.
These concepts have eluded me for many years and if the defining post or video is out there I haven't found it yet.
Good luck with your journey.