ok.. ok .. ok.. I was just out skidding around and I noticed some interesting play in the drive line.. When I would skid I could feel the chain 'skip' one way; and after that when I mashed it would go the other..
I'm running formula hubs with a surly cog and a crappy stamped lockring.. I tightened that lockring as well as I could reasonably do a couple times after mashing on the pedals.. I just took the lockring off to inspect the threads and nothing looks damaged.. Tomorrow to dura-ace...
what did I do wrong!?