Quick random plug here from a fellow Mojo user. Messing around with a 3D printer I rustled up a printable desktop dock for the Mojo, in case anyone else fancies printing one for themselves: https://www.thingiverse.com/thing:2880226 Expect to do a small amount of customization for the USB...

Case option: Case Logic TBC-401 (Amazon US)   Pretty much a perfect fit for Mojo plus supplied short cable (wouldn't fit a much longer/bulkier cable). Scuff/fluff/spill rather than impact protection, but just the right size.

I actually changed to the black filters on my SE846s and preferred those with the Mojo (at least so far). I'll probably swap back and forth to compare some more, but I preferred the slightly more relaxed sound of Mojo + black filters. 

I think I see your point...  

Interesting. I don't get any "latent" hiss on Shure SE846s. If there's hiss on the recording it certainly comes through, but I don't hear any otherwise.