Without being able to "catch the ball squarely" on the clubface, one has little chance of maximizing distance. A key to controlling the clubface and generating efficient power is found in rotating the lead forearm properly.

Drill

Extend the thumb on the hand of your lead arm and point it toward the top of your chest just below your Adam's apple. Next, drop your hand until it is waist high allowing your hand to rotate outward so your thumb is pointing down the target line.

Extend your other arm to form a golfer's grip, bend at the waist and extend your hands down the target line as if you were just past impact. This is a simple demonstration of proper forearm rotation - nothing more, nothing less.

Test

To confirm you are rotating your forearm properly, put your watch on so that the face is visible from the underside of your wrist. Now, take a normal swing.

When you complete your swing, you should be able to read the time on your watch.

Confirmation

The use of a ball flight monitor, or launch monitor, will confirm you are maximizing impact. By tracking clubhead speed, ball speed, launch angle and spin rates, the monitor will calculate a "smash factor" for each shot.

A smash factor of 1.5 is considered the industry standard for solid impact or the maximization of a square face at impact with a proper swing path and controlled clubhead speed - all essential components required to generate the maximum distance possible.

Other factors

In addition to a square face at impact and proper forearm rotation, the combination of clubhead design, loft, shaft flex and kick-point, and golf ball play a substantial role in the delivery of distance.

Better instruction facilities and golf shops that employ launch monitors as part of their teaching and equipment evaluation process can help match your swing style, clubhead speed and path, and impact tendencies with the ideal equipment combination that will add yards (and consistency) to your shots.