I have a 905R that I have been playing since 2009. It has the Pro Force V2 76 gram shaft and is a great club. I hit it pretty darn good. Was wondering if a 917D2 with the Mitsubishi 60gram shaft would help me with any more distance. Can the face on my current driver wear out so to speak? Is technology that much different today that I would notice it? I have hit many balls with this club and do not know if that plays into any of this. Thanks for any help and info you can provide. Don