Right you are, asleep. The Closed Plane Line -- not merely a Closed Stance -- causes the Clubhead to approach the Ball more from the 'inside' the Target Line. When you reduce the Downward (but not the Outward) element of the Three-Dimensional Downstroke, you automatically produce a shot with less spin.
Why would you reduce the downward?
I assume the clubface is point at the target or slightly right (normal) despite the closed/closed?
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