When I received my 917 D2 a few weeks ago I was very impressed with it. Gained 20 yards from my 915 some club some proper fitting from a Titleist Thursday event but either way a 20 yard is game changing for me.
Well last Saturday my new 917 F2 and WOW! This thing is border line illegal, long and straight gained more with it than driver. Reaching par fives in two is now a common part of a game that I had almost given up on. Very,very impressed!