Current Projects chat and miscellany

Okay, so admittedly it's a first world problem, but is there an aesthetically clever way of concealing the non-drive-side threading, other than actually mounting a cog. I find it rather difficult spending a couple of grand on a minimalistic bike, only to end up with something that isn't.

Is there anything so terrible about running a second cog? Cogs can be quite nice looking things.

Or are you weight weenie'ing on this build?