The Detroit News.
Many recreational golfers are more fluid on their practice swings than when it really counts.
Their tempo is even and relaxed until they set up to the ball. If this happens frequently to you, try practicing at home by swinging at plastic whiffle balls in your backyard. Since the ball won't go anywhere no matter how hard you swing, you'll be less likely to change your swing. Even though it's not a real golf ball, you eventually get the feel of swinging the club while looking at a ball. Another good range drill is to make three smooth, continuous practice swings before stepping up to the ball.