This
Callaway Diablo Edge Driver is undoubtedly a shade longer than the original. I believe there are many factors accountable for this. As the original sported the same hot "X-Face" technology that Callaway has been refining for many years, this newer model, similar to the new FT iZ Model, also features said an X-Face technology that has been "Chemically Milled." When i explained inside the FT iZ review, this method is just like that old "Acid Dipping" process we used to use to take out dead weight in the heavy gauge steel bodies of our own old hot rods if we were kids. Much like the existing GTO's and Plymouth Belvedere's of our own generation, this newer "Chemically Milled Face" has had the dynamic spots made larger, along with the deader spots made much smaller. Though all drivers max out at .830 COR by USGA Regulations, the entire face does feel more consistent.
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