I've also got a redished rear wheel and a Surly cog with a BB lockring. I put a fair amount of the blue Loctite on both the cog and lockring and cranked hard when I screwed both on the hub. I run a front brake but try to do a fair bit of backpedaling to slow down/stop. I've yet to learn how to skid so no worries there. I check my cog/lockring set up every once in a while to make sure they're still locked down tight. I am hoping to build up a rear wheel myself using a Mavic Open Pro rim and possibly a Surly or Suzue hub one of these days...just need to decide on a hub.