Poor balance due to swinging too hard.
Addressing the ball with your shoulders aligned too far to the left will cause you to slice. Many people make the mistake of lifting their left heel during the backswing, which is one of the most common causes of a slice.
Straightening out your hips during the backswing or a having a poor tempo can cause poor and inconsistent contact with the ball.
Failure to make proper contact with the ball due to a poor swing; causing you to hook, slice, top, or duff. You fail to make solid contact if you move your right elbow up and down because you don?t get the depth you need to make a full backswing turn.
Trouble finding the correct distance between you and the golf ball.
Trying to hit at the ball will cause you to lead your swing with your hands instead of your body or stopping the swing at impact. Your palm might be facing up during the backswing, causing poor contact and unpredictable ball flight.
Waggling can leave the club too far inside if not done correctly. Remember, if you wait any longer than 8 seconds of addressing the ball, whatever picture you formed in your mind begins to fade.