Hello I was wondering if i could pick everyones brain for a little driver shaft help. I currently have 910 D2 with proforce v2 66 stiff shaft that brought my launch and spin down to better levels than the project x tour that was in it to start. I'm wanting to upgrade to the 913 D2 and will keep my v2 66 and let project shaft go with the 910. My thoughts on new shaft is the phenom 60 maybe 70 or the d+ white 62. Looking at the grid on custom it does show the diamana as same spin location but little lower than v2 66. Will these shafts play similar or would i see lower launch and spin out of the above two listed versus the v2 66?

Thanks