[O.B.Left]

Much easeir to create a horizontal hinge, toe down the line at follow through if I take my natural left hand grip, the way it hangs at my side.

In my first lessons with Lynn, back when I was swinging and trying to horizontal hinge in startup, this is exactly how he described the "natural" left hand grip. With your hands hanging at your sides, the hand is aligned naturally at a slight angle, not perpendicular to the plane line but in line and on plane to its natural plane of motion .....to the mouth. "Hand to mouth" taking precedent in an evolutionary sense over "hand to golf plane".

So the flat left wrist is not necessarily truly flat but is geometrically flat, flat in name only, depending on grip type. Freddy's strong 10-2-D grip and resulting cup at top are "flat". The cup being the result of his grip types' hammer like pure vertical plane of motion, cock and uncock. I used to get to top with a bowed left wrist thinking that was flat, hard to cock that arrangement. Kind of Trevino like but without the end results. I'd added a little horizontal movement to what should have a pure vertical plane of motion.

Somewhere in all of this is consideration for the angle or arc of approach and the "flat" left wrist (or the pressure points) traveling at right angles to it. Still sorting through all of this myself. Its going to take a while. I figure another hundred years or so and Ill have it all down.

Thanks for all the great posts. Regards

ob