Milo Lines explains how to execute a proper shoulder turn on plane during the backswing. By incorporating left side bend as you rotate back, you avoid turning too flat and maintain correct spine angle throughout the pivot.
Avoid turning your shoulders level or flat to the horizon in the backswing.
Add lead-side bend (left bend for right-handed golfers) while winding back.
Winding into side bend keeps your shoulder turn on plane and maintains posture.
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