I took a lesson at my club recently with my new 910 D3 and to get him to see what setting would be best for me.  It was already determined that the RIP 60 Stiff D3 9.5* head was best for me.  well we tweaked it to get my back spin numbers down and a little more draw. he helped me with my swing and instantly WOW.  i hit 10 good drives right in a row... the worst drive was 272 total distance but the one i will remember and work on to make it more consistant is as follows:  Swing Speed was 113, ball speed 157 back spin 2900rpm,  carry 292 and total distance... 304.5 Yards.  i have never hit a 300 yard drive on a launch monitor before. this driver just feels so crisp.  i know there are many out there that can hit it further and thats great.  its just me stating that i have never been that great of a driver. with my 905r i was averaging 265-280 AT BEST.  Thanks for a great driver!   Yeah, the lessons helped too!  Go get fit, get a great driver and take a lesson, YOU will see results!