[tongzilla]

Angled Hinging and Straight Ball Flight.

Clubface Closed at Impact, therefore Impact Point must be on Outside Aft (but Visual Inside Aft).

Clubface Square at Separation, Impact Point dead centre.

Simultaneous Closing and Layback refers to the Clubface Closing relative to the Plane Line.

Note that Impact Point changes between Impact and Separation. This doesn't happen with the Centered Clubface Motion of Horizontal Hinging.