[*]After some feedback,,,, the x0 rear mech on my Cube Stereo keeps sticking forward when going over aggressive roots or breaking bumps, and thus the chain is then slack. It is sticking on the clutch rather than mech forward lock! Has been back to SRAM under warranty twice now, second time they replaced with a new mech, however 1st day riding is Les Gets problem comes back and the mech is fecked again!!!!
When it locks forward it needs a good rattle to get it to go back in to position….
The xo mech is the latest 2014 medium cage 10 speed.
Any feedback welcome as my LBS think I am bull shitting……

Is the chain too short such that when the suspension compresses with the mech in a big cog on the cassette it over stretches the mech?

I have a similar problem with a stereo hpc 160. With mine the mech is rubbing away on the hanger and once worn it slips past and goes forwards. As with yours the chain then rattles and jockey wheels can get stuck in cassette and it can’t change gear. I’m on my third mech hanger now. To me it looks like the mech sits too far to the edge of the hanger.