Funny thing about circles.... you can only go back and forward around them.
The Circle of the Clubhead Orbit lies on a Flat, Tilted Plane. That
Plane has a Baseline. Therefore, the Golf Stroke has two dimensions in
addition to the one you have described. Namely, Up and Down and Out
and In. Hence, the Golf Stroke's basic Geometry:
-- Up, Back and In (to The Top);
-- Down Out and Forward (through Impact);
-- Up Back and In (to the Finish).