I had a great time looking over Randys shoulder as he went to a nitty-gritty analysis of a swing.
Now I'd like to be 100% sure about how to draw those lines.
If you have the energy or the time, please draw a few more lines. When drawing your lines, please reference the book pics as close as possible. Note that we are referencing clubShaft control. Draw a line up the shaft at address. Draw a second line like 10-6-b and please note where it bisects the arm pit. Third line shoulder tip area. Upon completion, have a plane party.
Line 1. Shaft plane
Simply a line along the shaft and through the hosel. Not through the sweetspot or through the ball. I assume at adjusted address.
Correct?
Line 2. As per 10-6-B. Turned shoulder plane
Draw a line from centre of ball through the armpit. It should bisect the armpit as if it was a rod from the ball that is put under the arm and then tucked up as far as it goes towards the armpit.
(Maybe it would be more correct to say that the line should be drawn through the sweetspot of the club at impact, regardless of the ball position??)
Correct?
Line 3. "Randy: Third line shoulder tip area"
My interpretation is that this is again the turned shoulder plane line. From the centre of the ball to the highest point of the right shoulder at the top of the backswing. My interpretation is that this should be the same as Line 2 above.