Sorry to butt-in. But "Snap Release" is a Term Used to describe "how far along the straight-line delivery path when the Pulley begins or is initiated". It's not a #2 PP Swing. It's a #3 PP Swing. Driving Right Forearm. At the Very End of the Straight Line Delivery Path, when there is no more straight path to continue, the Right Forearm/Hands meet the Pulley. Then, the Right Forearm "Snaps" into the Pulley.
The #2 PP Swing (Wrist Cock) focuses on Wrist Cock and Uncock. This is the Swing used when you want to feel like the Left Arm is "Blasting" off the Chest. This Blast off the Chest initiates "Throw-Out" and CF sets in to Uncock the Left Wrist. It Doesn't get a "Snap" Release. With this Swing Type, you don't feel the Straight Line Delivery Path because the Right Forearm is Passive (Alignment aid only). Hence, Random Sweep Only when using the #2 PP (90% of Golfers).
BOTH, the Straight Line Delivery Path and "Left Arm Blast Off the Chest" are the "Hand Acceleration" Phase (of the downstroke acceleration sequence). Pulley, is Clubhead acceleration. Controlling when "Clubhead Acceleration" begins is directly controlled only when using the #3 PP to sense Inertia and Acceleration. It is only indirectly controlled when using a #2 PP Swing.
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