I have been reading reviews all over the place about cranks and bottom brackets and i cant get a bloody clue at all. Several people swear for raceface prodigy xc cranks or XT cranks and several others say that they are cheesy cranks they creak they break and they come loose. I was considering the RF Prodigy XC crank with an evolve freeride ISIS bb against the XT splined. Any Real ideas here from users? I weight 200lbs i do extreme xc and mild dh. I put a lot of strength in the pedals but i dont do drops at all. My current cranks are specialized strongarm II square taper.