Once that Delivery Line is established, the original Plane Angle and Line are no longer utililized and thus no longer relevant.
This is the crux of the matter. Without your input, I would never have even contemplated that the original Plane Angle and Line could be considered "no longer relevant". After all, was that not the objective of the original stroke? I was viewing the Angle of Approach procedure as a mechanism to produce that on plane stroke (the original plane, that is)