When you say "Active" Uncocking for a Swinger are you refering to Centrifugal Force alone doing the Uncocking or and active use of the muscles in the Left Wrist?
Let me try this a different way. The Left Wrist Throw 10-20-E must be Active, it being named a "Throw". It feels like a whole left arm Throw to me but from the wrist.
An Active uncocking of the left Wrist and therefor an Active Lever Extension as well as an On Plane (assuming the left hand is turned to plane) swing Force.
Does this sound right to you Drew? Whatever it is it works for a Swinger.