Conclusion: I bought the 910 D-2 used on Ebay 6 months ago. As all clubs do it takes time getting used to but once you get your hands on this club it is a difference maker. It has an adjustable tool to change loft and lie adjustments to fine tune ball flight for more accuracy and control.
Summary: I like Titleist products from its ProV1 line of balls to its clubs. The D2 is a solid driver. Exceptional feel and sound and very well balanced. The elongated head is reassuring and the club is forgiving. A wide range of abilities will find satisfaction.