[O.B.Left]

It is the down and OUT that prompted my original question -- to thrust out, it seemed that the elbow has to be somewhat under the plane

Just re read this.


The clubhead , the Hands, the direction of Thrust all approach the ball from the "inside" just as the Plane dictates given any angle of inclination. Picture it from down the line......to move down plane is to move Out and Down towards the Plane Line.

A straight Plane Line has an associated Inside out approach given any inclination to the plane. A vertical plane would have only down and no out. A Horizontal Plane would have only Out and no Down.

Per 2-J-2 ".......Though its an "Inside Out" Impact its not an Inside Out Stroke unless the Plane Line crosses the Line Of Flight as depicted in photo 10-5-E" (Closed , Closed).

So in other words the direction of Thrust is not "cross line" or "across" like you say unless you construct a cross line , closed Plane Line and then thrust down and out along this new plane towards its Base Line. Thereby thrusting out "across" the original straight plane line.