Best OD post of 2013.
Haha, but I was seriously pissed today. My derailleur went on a trip around the cassette at the top of the trail. I think it's time for a model with a clutch.
10 speed XT or X9 with clutch are both solid options.
I have a new 2012 X9 medium cage no clutch for elcheapo.
but if we really did do chainless races on the top two sections of llmtn, i finally might have a chance...