Jack Hamm is totally legit...I played a round of golf with him and he consistently drove the ball 325+ yards. He's a great guy and his Guiness World Records are also legit. I gained 20+ yards using the Hammer X Driver with Aerospeed shaft and was amazed how easy it was to line up and hit. The ball propels off of the clubface with a medium-high trajectory and then lands with plenty of scoot and roll-out. Jack's infomercials may be a little over the top, but his products do work for a lot of golfer's who are looking for distance. I bought my Hammer X Driver off of the Golf Channel informerical and couldn't be happier.
