[stebboko]

Great 'real world' post, stebboko. I'm with you!

Remember, at Impact, per 7-2 (#3), both the back of the Left Hand and the Clubhead Lag Pressure Point (#3) face down the Angle of Approach (to the right of Target).

Hence your "10 to 15 degrees stronger than pure vertical" is not a true 'Turn'. Instead, it is simply the Vertical Left Wrist in combination with the natural Arm alignment as it inclines toward a Ball that is located Up-Plane (and prior to Low Point).

Sorry, but this is a whole lot easier to demonstrate than to explain in words.

No, that got the message across well. Thx also 12 piece for your valued comments.

2-C-1 shows separation occurring at the Low Point, where the clubface is square to the Plane Line.

When the Low Point occurs 3 or so inches after the (up-plane) point of Separation, I assume Low Point is still where the clubface becomes square to the Plane Line with a 10-5-A Square-Square alignment - is that correct?

So at Impact Fix, the clubface is set up open for a 10-5-A alignment, the degree of 'openness' depending on the rate of closure of the selected hinging and the chosen release?