I have hit the 910 D2 9.5 with the Diamana Kai'li shaft and my spin rate was a little high. I love the feel of the shaft. My swing speed is 100-105. I also tried the Aldila RIP 60 shaft, but didn't like the feel as much. Should I go with the D2 and play with the settings or go to the lower spin head with the D3? Thanks.