If your tendency is to come over the top, then your arms may be moving with your torso on the downswing causing the club to cut across the ball. The result is a weak slice or a pulled shot that is difficult to control.
You need to learn to move your shoulder independently from your body. Often times, lack of flexibility in your shoulder won’t allow you to swing your arms freely. Doing disassociation exercises will help you increase mobility in your shoulder.
Sit on an exercise ball and stabilize your lower body.
Raise one arm so that it is extended and parallel to the ground.
Keeping your torso and lower body completely still, move your arm across your body.
Return to the start position.
Repeat motion for 8 to 10 repetitions on both arms.
This exercise works best on a stability ball but can be done on a regular chair. The idea is to keep your torso very still as you move your arm from your shoulder. This exercise works the muscles in your torso, chest and shoulders.