Just been on the range trying out various lofts on the 910d3. The sad thing is that the only available shafts where the stock ones. I know that I prefer a shaft in the 65 g range and probably a torque around 3.5. Today I used the kaili shaft in stiff…
Also, if the old AP2s were custom, there will be a serial number on all clubs in the set.
My experience has been that if you like the shaft in one club you will like it in another. I agree that you should go with the heavier shaft for the fairway wood. I have been very impressed with the RIP shaft