Thanks for posting this vobopl, I had been rather intrigued by your comment in the other thread.

A few questions, I notice you're using a snap on cog that has been drilled to fit your disk mount. Did you have any difficulty with the hardened metal? If so, how did you deal with it? also, how does using your altered cogs compare to the ones from that online shop "london fixie" in cost and durability? (have you bothered?)

Your axles are really thick, did you have to special order your cartridge bearings?
you mentioned a spacer in one of the pictures, I don't quite see it, is that spanning the width of the axle?
Also, you made a note of your spacers extending beyond the axle, was there a particular reason for that? compression?

whew. I think that's about it.

Nice work!