[Yoda]

Yoda,

What would be the benefit to start from an elbow plane instead of a turned shoulder plane?

Starting from a normal Elbow Plane (10-6-A), even if steeper-than-normal per 7-23 (Editions 1-6 only), is more 'golf-like' than starting on a Turned Shoulder Plane. A visit to a Plane Board set on the Turned Shoulder Plane will confirm the extreme position required to address the Ball on such a steep Plane Angle.

Also, note that I was referring to the longer Strokes. Short Shots -- Putts and Chips -- typically are executed on much steeper Planes (and often with Zero #3 Accumulator Angle). Hence, they lend themselves to the more extreme Address Position required by the Turned Shoulder Plane.