so i got a dirt path and decided it would be real easy to learn how to skid on this, so i try and lo and behold it worked! hooray. so i get the motion memorized and i get onto brick and try it. not, so smooth, more like skipping, but hey that's cool too. then i really go for it on the pavement and damn, the cog slipped! i thought i was going to strip the hub again. so i pedal forward and the cog slips forward and i ride home slowly without backpedalling. i get home and take the lockring tool to the lock ring and tighten it. damn if it didn't move half an inch to an inch.
i heard installing cogs and lockring is somewhat tricky but what am i doing wrong? it's a surly flip/flip hub with a surly cog and DA lockring. no loc-tite or whatever. i swear it was tight when i first installed it. do you find you have to tighten it up every so often?
damn it feels good to skid!

damn that sucks

when you put that cog on tighten the bloddy hell out of it. pedal on the cranks if you have too.

Is it more fun to skid by backpedalling than skidding by slamming on your brakes?
I skid about 3 feet one time (on accident) by hitting my brakes at the same time (to stop from slamming into the people in front of me).

I haven't tried skidding using my pedals yet for the reason as not to mess up my cog, hubs or anything else.

You could try some touch up paint on the lockring. Touchup paint acts like mild loctite.

touch up paint? sounds interesting. i'll try that.
i'm thinking that i should've re-tightened everything after the first few rides.
as for skidding with brakes, i've never tried it. i'm only running the front and worry that i'd endo if i slam on them. but yeah if you're runnign stock langster hubs, i'd be wary of skidding too, seeing as how i blew them out on my first attempt.

that happened to me!!!! let me tell you it was a long walk home. I had to pull a fred flinestone to stop. this is a good reason to have a front break

does that go for the lock ring as well? i thought i read somewhere that you shouldn't torque the lockring too much, that it should rest against the cog. i'm not sure what that means. oh well, at least it's a fixed/fixed hub. trail and error.

my cog slipped during the cutting crew classic, there was a tiny bit of play but it was sketchy. the lockring was on tight and didnt move, but the cog wasnt down all the way, so the lockring wasnt quite down either, allowing for play. scary duyring a big race :-P

does that go for the lock ring as well? i thought i read somewhere that you shouldn't torque the lockring too much, that it should rest against the cog. i'm not sure what that means. oh well, at least it's a fixed/fixed hub. trail and error.

A common reason for lockring failure is, that the cog isn't wide enough, so that the lockring doesn't put enough preasure on the cog.
Avoid this by putting a washer between cog and lockring.
I tighten my lockring with a shrewdriver and a hammer.

i would think a surly cog would fit a surly hub nicely but i guess there is always room for error.

I have never had to tighten, but I may have only been lucky.

as to onetin's suggestion

tighten the hell out of the cog. put on the lockring. ride a bit without backpedaling. go back and tighten the lockring again.

but do make sure you get it on good. i put on my pedals and held my wheel while pushing down a bit to get it on good. i've had no problems since with my new phil's after i junked up my stock khs wheels.

okay, after a series of riding and tightening i think i've finally got it! no slippage and thankfully no stripping. still can't skid on demand but that's a different problem....