Can anyone tell me any real differences between no name cogs (like those sold by e.g. Ben's Bike) and name cogs? I want to experiment with my gearing with 17 and 18 tooth cogs in 3/32, and I didn't find anything in Philly at the handful of shops I went to (lots of 1/8). I'm at 53x20 right now, and it's a bit too small.
They all say "hardened steel", so what's the real difference? I searched the forums and found lots of people complaining of stripped hubs, but I'd suspect that this often has as much to do with how good the cog is on and how good the lockring is on - not counting the person who had the EAI cog shatter on them.
Is it just a matter of nicer machined edges? This totally doesn't matter to me, this is not a bling bike, nor do I have a fancy chainring, nice and not exactly round. I know people will say that beware, you'll strip your hub, but can anyone give me any qualitative info on no name steel cogs? They don't look stamped like cheapo chainrings, and they're way cheaper, cheaper than two for one EAI or Surly it seems.