Replying to Dalbello il moro different flexes

I went and got fitted for some boots this past weekend and got some new il moros! so stoked! anyways, the boot fitter didn't know exactly what flex each tongue was. they came with B and C. I know one is stiffer, and one is much more flexy, but i was just wondering if any of you knew the actual flex of them? like 130 for C or whatever. I just want it so i can compare it to my old boots. and does anybody have any recommendations on which to use? +k to help! thanks guys