Clay Ballard from Top Speed Golf explains how to maintain swing plane and posture using a tilted pane of glass mental image. He demonstrates how proper secondary spine tilt at setup allows the club to swing cleanly from the inside for straighter, more powerful driver shots.
Visualize a tilted pane of glass extending toward your target and trace the club head along that plane throughout the swing.
Achieve at least 90 degrees of shoulder turn on the backswing while maintaining forward spinal posture.
Set up with proper secondary spine tilt away from the target to facilitate an inside swing path.
Perform 4 to 5 half-speed rehearsals tracing the line on the ground before hitting full shots.