The Big Bertha Diablo Fairway Woods are just plain mean. They have attitude and they'll let more golfers feel like they can bring every course to its knees. Edge Technology takes advantage of weight placement within an all-stainless steel clubhead. By strategically shaping the head, the engineers can achieve optimal performance characteristics that produce Draw and Neutral options that golfers can choose to match with their swing type and shot shape. It also helps golfers release the club at impact with full power, especially when swinging aggressively. VFT Technology was incorporated to boost ball speeds and raise forgiveness levels for higher confidence.
The Big Bertha Diablo's most notable innovation is the uniquely shaped all-stainless-steel clubhead, which allowed Callaway engineers to play with different weight locations when designing the club. The flexibility resulted in an optimal center of gravity (CG) for both the "draw" and "neutral" options, along with a higher moment of inertia (MOI). There's no better wood for golfers who want to overcome their natural swing flaws and hit the ball straight down the fairway. The design--dubbed Edge Technology--also helps close the clubface at impact so golfers can better release the club with power.
The Big Bertha Diablo Fairway Woods also employs a couple of other classic Callaway designs: Variable Face Thickness (VFT) and S2H2. With VFT, Callaway built varying levels of face thickness into the club, resulting in an optimum ball speed from all areas of the clubface. Even if you don't hit the ball dead center, it's still possible to hit a monster drive. The S2H2 design, meanwhile, increases the club's discretionary weight by removing it from the hosel and repositioning it in the perimeter of the clubhead. Not only does this help with distance, but it also improves the feel and stability of the club. Add the features together and you have a club that's sure to please everyone from beginners to low handicappers.

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Just received the 5 woods I ordered. They both look brand new and I couldn't beat the price anywhere. Just went to the range and the clubs are great! Thanks, I'll shop here again.