This brings us back to our original topic, and that is where on the face of the driver is optimum? You might assume that the center of the face is the best location. The driver head is a very asymmetrical object. Other than Callaway, some mass is used to make up the hosel, which shifts the center of gravity slightly higher and toward the heel of the geographic center of the face. Note that the alignment mark on the crown is always put in the center for cosmetic reasons and does not necessarily reflect the best position to hit the ball. Next time you go out a hit some balls, take some impact label with you and see for yourself whether you are hitting in the ideal location on the face. Adjusting tee height and ball position can add valuable yardage.