It's not a matter of being on board. Hmm? Maybe I didn't give enough information.
Ok, with any Golfclub:
Left Wrist is, Level, Vertical, Flat.
and
Clubshaft is, Vertical to the Ground at Impact (no forward lean)
Then,
The Clubshaft is on the Elbow Plane.
LT's Left Wrist is not Vertical
His club is on the Elbow plane and his wrist is level
His club is on the Elbow plane and his wrist is level, flat and Vertical
Elbow Plane
Have ya got any pictures with a Clubshaft on the Turned Shoulder Plane?
I don't know about that D . . . Dan Sykes in all them pics 'cep for Lee Buckle . . . Sykes is closer to hands only plane than elbow . . . Still not witcha.