Because THRUST is ALWAYS ALWAYS ALWAYS Crossline . . . even CF goes OUT . . . .that's why your clubface is hooked. The force is at right angles to the radius which is going down OUT and forward. the clubface is hooked to divert the force down the target line.
Motion is on line but thrust is out.
Smell it?
Oki doki,
Doesnt the Swinger use Arc of Approach? And Drag Loading......
And you cannot have an Angle of Approach to a Angle of Approach........
Suddenly the smell is gone......
HOLLA!!!
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Golf is an impossible game with impossible tools - Winston Churchill