What are some of the different between the 910D2 and 913D2
Well first off is the looks. The weights are a different shape from the 910 series. The face of the club is to increase club speed.
The new 913's are more forgivable, offer better work-ability, and offer more distance than the previous models. The 913 also has a larger face to create a hotter COG which creates the distance. Due to the larger club face, you are also going to have a more consistent ball flight, and won't notice the off center hits as much. I hope that this will help!
The bezel weight has changed shape to help move the MOI a litte further back. The 913 D2 should test out for you with some less spin and improved launch characteristics. Probably a couple of more yards on center and improved control/distance on certain mishits because of a larger sweet spot on the face. The stock shafts have been upgraded/revamped from the 910 offerings.
Christian J The new 913's are more forgivable, offer better work-ability, and offer more distance than the previous models. The 913 also has a larger face to create a hotter COG which creates the distance. Due to the larger club face, you are also going to have a more consistent ball flight, and won't notice the off center hits as much. I hope that this will help!
+1. The biggest thing I've noticed is how much more forgiving the 913 is.