How can a 400cc head be as forgiving and long as a 460cc? By adding a second wall 8mm behind the titanium face and condensing the volume, the head has better structural integrity and allows the entire face of the club to respond in a way that provides multiple hot spots. The traditional sweet-spot is no longer just in the middle of the face, we have created a the whole club face to feel and react like a driver hit right on the "screws". Here is more information regarding the testing of the Doublewall technology.

BioMechanica, an expert biomechanical engineering firm that provides counsel to the USGA and builds the golf club testing cannons that are standard in the golf industry, was hired to test the Doublewall technology. The test results are amazing. BioMechanica found that the hitting the Doublewall off-center (like most of us do) will only decrease your performance by 2.9%. That's 18% better than the nearest competing club for off-center hits!

BioMechanica's independent lab tests showed some extremely interesting results. Because the Power Chamber in the DoubleWall creates a more stable striking face, all of the independent testing lab results showed the DoubleWall had a much smaller standard deviation of COR for off-center hits than any club it was tested against. And the differences were significant. That is what BioMechanica’s test reports showed us. We were thrilled, because all of that technical jargon translates as - a Bigger, Fatter Sweet Spot!

Now, not only does the DoubleWall play at the edge of the legal speed limits, it does so more consistently throughout the face area of the club head. This is a very big deal for those golfers who don’t always hit the ball dead solid perfect. And you know who those guys are — pretty much everybody!

This patented driver clearly deserves to be called a premium driver.