[SECGolf]

BUT the toe ain't slammin' shut like a screen door in a trailer park during a tornado.

I may be misunderstanding your intent, but as long as the screen door is installed on hinges, the "clubface" or door motion is still the exact same.
Same action of the clubface, but at a different rate of speed (therefore, no "timing" of clubface closing - no matter your rate of speed). Push a door as hard as you want, it will still line up exactly with the frame (at some point along its journey).

As far as how much clubface rotation, the amount will be perfect every time if you take care of proper alignment and physics, (that is FLW held vertical to the related basic plane (a condition) and orbiting arms and/or torso) and also if you just know that hinging is not idependent wrist rotation. So this might say, if worried about executing a swivel instead of hinging, feel what the arms and torso are torso are doing - only orbiting, no effort towards any independent wrist rotation.