My stoker and I are building a new Calfee carbon, and we have a dilemma on components and gearing. We ride 75% of the time in the mountains where the small chain ring is critical. I have decided on Dura Ace, but I cannot get the low end gearing we need with an 11-28 cassette. We currently have a Co-Motion, and the 11-34 with an XTR derailleur is perfect. I am reluctant to go the an 11-34 IRD because of everything I have read on this site. Has anyone tried the 11-32 Sram XX 10 speed yet? If so, what chain rings were used. Was the shifting Dura Ace quality? I would like to use FSA carbon 53-39-28. Any advice is welcome.