I am trying to determine the dynamics of gripping down on the driver. I read that you can lose distance and gain control. But how much distance would you lose gripping down 3 inches on a standard 45 inch shaft. I have read different opinions…some say they hit the ball farther - better contact, would you get more swing speed (not necessarily clubhead speed). What would adding a bit more weight to the driver head do? Way too many variables! Thanks, sorry if this has already been covered.