Tough decision deciding which way to go. Currently a Shimano person, 8-9-10spd. Dura Ace, 8spd. XTR, 6-7spd.XT.' Never a failure'. Sram is light but not proven over the long haul, and I don't know where it's made. I understand the new 7900 stuff hates grime and needs new cables every 6-9 mos. but so what. How is the Super Record's quality? As good as shimano. All that carbon stuff looks fragile. One more point on the way Shimano levers work. In the event of a crash they are less prone to breakage.