A 12 degree head & ProjectX EvenFlow 45g L-flex Shaft The new Epic Flash driver employs a new Callaway technology called Flash Face to help golfers get more ball speed for more distance. That great feeling you get when you make a good swing and crush one off the tee? Flash Face makes the ball go faster and farther. Flash Face's sophisticated architecture was created by Artificial Intelligence the first known instance of using A.I.in the golf equipment industry and Machine Learning, a field of computer science that uses statistical techniques to give computer systems the ability to learn with data without being explicitly programmed. Through Machine Learning our computers cycled through 15,000 face iterations, learning from each one, before arriving at Flash Face.