The Right Hand is placed on the Club in its Vertical Condition, i.e., perpendicular to the Horizontal Plane. This alignment is mandatory for the ideal Right Forearm Flying Wedge and its 90 degree support of the Left Arm Flying Wedge.
I guess it's time to show my ignorance, but I don't understand what you mean here, Yoda. I understand what perpendicular is, but I guess I'm unsure what the "Horizontal Plane" is. The only plane I'm familiar with is lying on an angle. The right arm shouldn't hang straight down, naturally, at address?
In the meantime, I'm going to go see if I can find this in the Yellow Book.
Jimmy,
There are three Basic Planes of Motion: Horizontal, Veritical and Angled (the floor, the wall, and any degree of pitched roof). Per 4-C-1: "The Wrist is Vertical when the back of the Left Hand would lie flat against a swinging door whose hinges are located at the shoulder line."
Holding the Wrist at Address position, at the Shoulder, or over the Head does not determine its Vertical Condition. Only if the Wrist has been Turned (to the right) or Rolled (to the left) has the Wrist abandoned its Vertical Condition.