The concept of plane causes many players concerns, two specific points of the plane is your shoulder turn which is determined by the angle of your spine at address and the second position is your left arm in the backswing relative to that of your body turn. There’s two types of swing paths, one being upright and the other being flat. To encourage the correct swing plane and shoulder turn you have to assess your address position and the angle of your spine which dictates the shape of your swing.
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