K here's the rest...
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Aiming Point - where you direct your stroke basically……and technically it's where you aim your HANDS....but your image of where the clubhead takes a divot is a good one....just make sure u know the hand Alignments always too. (nothing worse than hittin it good and having such a vague idea of what you were doing that you can't repeat it)
Low Point - relating to TGM terms it is opposite of the left shoulder.
Look in a mirror and swing your arm back and fourth like an elephant trunk...the lowest your hand can get is under the shoulder. The left shoulder is the center of the circle...your left arm is the radius (2 arm lengths being the diameter OF COURSE....lol)....your hand is the "satellite orbiting in a circle" if you know what I mean.
Now...obviously the club can bottom out before it is underneath the left shoulder right? (say the ball is back for example)
Why??
Basically...when you Bend the left wrist (Flattening the right wrist) it moves down....i.e. when you Release.
This is why ppl who FLIP (ppl who have Clubhead Throwaway...ppl who CAST....however you want to put it) hit a lot of shots fat and thin and pop up their drivers. Flipping makes for an inconsistent and unreliable low point.
And really.....to make the image clearer....you can think of the left wrist as the center of a circle too (errr maybe half circle unless your wrist is REALLY flexible)....if you just sit there at Address and swing the club back and fourth from JUST the wrist you can see this too.
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Hope that don’t screw you up too much

...but u asked for it!.....and that is how it works.