I am going to be testing out new shafts for my 910 D2 driver in the next few weeks, currently set at D4. Swing speed is 112-115 with ball speed in the 165 +/- range. Launch is in a range of 9.75-10.75 with spin rates of 2100-2300. i am intereted in higher launch / higher spin shafts, any suggestions for what i should try while on the range?