Was fitted for the 917 d2 driver at titleist fitting centre at craigielaw Scotland. Picked it up Friday played my first round on Saturday. Played with the new pro v1 that I got as part of the fitting. What a difference hit a few good drives and a few not so good . Best driver I've ever hit so forgiving the bad drives still got out there. The new pro v1 ball is amazing great distance great feel a pleasure to play with. Would recommend anyone buying the 917 to get a proper fitting really gives you the confidence knowing the club is designed for your game.