So I had a fitting last week with a pro and I wanted to share my results.
I tested my 10.5 SuperTri with a Miyazaki black 61, my G10 w/prolaunch red stiff, and the 910 D2 10.5 w/Diamana Kai'li 65 stiff
My G10 launched the lowest with the least spin (100mph, 11.4 degrees, 2200rpm).
My supertri launched a bit higher with more spin (101mph, 14.7 degrees, 2870rpm).
The D2 launched right between them, with the most spin (103mph, 12.9 degrees, 3079rmp). It gave me the most carry, and was about 8 yards longer than the other two drivers.
My pro thought I should pull the trigger on the D2 even with the higher spin rate because my landing area was so tight. For what it's worth, it looked and felt fantastic (but so does the Miyazaki).
I definitely recommend hitting it. I think I'll stick with my R9 for now, but if it stops working I'll have to consider selling it for the D2.
Interesting numbers for sure. I was looking at this driver on Golf Galaxy's website again, its very nice looking. Wonder if your numbers would have been even better with the Miyazaki shaft in the D2.