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What is Shaft Angle VS. Shoulder Plane?

Shaft Angle in relation to shoulder plane evaluates shaft delivery and how the player's hand depth and body sequencing can influence the arc.

Definition:  The amount the club shaft is above (steep) or below (shallow) the shoulder plane at downswing club vertical. A positive number indicates the angle the shaft is above and a negative number indicates the angle the shaft is below the shoulder plane, respectively. 

How to Apply Shaft Angle VS. Shoulder Plane

 📍 At the Top — Check Hand Depth
Hand Thrust at the top can influence Shaft Angle. A more negative Hand Thrust, indicating deeper hands, can encourage a shallower arc.

📍 Transition — Monitor Pelvis Movement Order
Look for the pelvis to move in sequence.

📍 Into Impact — Connect the Movements
Use Shaft Angle alongside Hand Thrust and the body's movement data to understand how the player's movements are influencing the shaft as it approaches impact. 

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