The Ping K15 Driver has an elongated head design that combines with an external weight pad to position the center of gravity for higher launching and longer carry drives. It is engineered with Straight Flight Technology which promotes natural club head rotation by concentrating approximately 10% of the head mass towards the heel. A larger face increases forgiveness and ball velocity for greater distance and accuracy. 

Many testers hold the opinions that Ping K15 features quality, good value and durability. When they demo with it, first swing out of the box went 290+ and very straight. Compared to the former club, the distance is about 20 yards longer. The tester has a slow swing speed around 95-100 and a handicap of 15, he thinks this club is worthy to be recommended to golfers who are slice prone.

The Callaway RAZR Hawk Driver also features Callaway's latest Hyperbolic Face Technology. This chemical milling process selectively removes excess material for precision thickness control across the face, and produces consistently high ball speeds for long distance.

The sole and crown of the RAZR Hawk Driver contains more than 23 million turbostratic carbon fibers that reinforce 67% of the clubhead. This allowed engineers to precisely control thickness like never before, resulting in a clubhead that's lighter, stronger than titanium but still has an extremely high moment of inertia. The lighter clubhead enables a longer club configuration for faster head speed, ball speed and greater distance without compromising forgiveness.

The Callaway RAZR Hawk uses its new forged composite technology to lower overall weight, but more importantly, to use some of that saved weight in specific places to increase forgiveness. A chemical milling process in the RAZR Hawk Driver selectively removes excess material for precision thickness control across the face to produce consistently high ball speeds for long distance.