I am happy to be the first to offer a review of this GREAT new product from Titleist. It does really live up to the hype. I found 8-10 yards on my first drive and seemingly more as the round progress. On the 18th hole, the added difference was almost 20 yards, and this is over my 915D2. This is right out of the box with no "fine tuning". My playing partners wanted to try it, and also hit it longer than w/their drivers. GREAT job Titleist.