Bring Your Swing Under Control
One of the reasons that you might have trouble controlling the distance of your shots is because you simply swing too hard. A lot of us are interested in producing a lot of distance, but those of you who already have it and are more interested in controlling the distance of your shots, you want to have a more even tempo or even pace to your swing, rather than try to create an excessive amount of acceleration or speed into the swing.
The Hum Drill
A real good exercise to help you get the correct feeling for your golf swing is what I call the Hum Drill. It is nothing more than humming while you make your swing. As I hum I will try to keep my swing at an even pace and I want you to listen to just the pitch of my hum. You will notice that the pitch did not change that much on that swing. Now listen to the pitch when I try to swing too hard and make the ball go too far. You can tell what happened, as I swung harder my pitch got louder.
Keeping an Even Tempo
So if I am trying to reduce my tempo and smooth out my swing to learn to control the distance of my shot, hitting shots while I am humming, trying to keep the same pitch will help me do that. As you can see that swing looked very smooth and it sounded very smooth. This is the best way to get your speed down to a manageable speed rather than to be out of control and not being able to hit the ball the distance you want.