Get 20 yards extra off the tee with one range session

By far the quickest and easiest gain you can make with your game is to optimise your ball flight off the tee with your driver. How many times have you played in a 4 ball and the guy or girl you are playing with seems to hit the ball 20 yards past you but the swing looks the same or worse than yours. Well it highly likely they have a better “spin loft” number than you do. (Even if they don’t know it).

So what determines your optimal ball flight and carry distance ?