Hi Neil 

Changed  all my woods this season to the 913 ,s  ( d3 driver, 15 hd & 18hd )  made a difference all ready to my game . Clubs feel so solid. Looking forward to the rest of the season. I went the Manchester golf show & went to the Titleist ball fitting stand & your guys suggested changing from pro v to  pro v x  got to say they were right to say to change feel my game has got better since the change  .  Stuart l