i actually change my R5 last year for a ping G15, i've tried many different drivers and compare them to my R5, since i already had a taylor made driver the first one i ask to try was the R9, to be honest i was pretty disapointed, it felt pretty much exactly like my R5 and the numbers on the simulator were about the same for both drivers, i also tried the callaway FT9 and the callaway diablo but again when i took a look a the numbers on the simulator i didn't tought it was worth the money, couple of weeks later i got back to the store and tried the G15, felt great right of the bat so i end up going home with it and i am still very please about it. But again it really come down to personal preference so try them both and see how they feel. If you have any question feel free to ask.