Something I ought to mention is that I was sanctioned in the same arbitration case where I’m now concerned about a conflict of interest on the new motion that’s being proposed.  I’m a little concerned that if I start e-mailing the arbitrators about this issue, it’s going to look as though I’m just being spiteful about my own sanctions.  If you still think this is the best idea, though, I’ll follow your advice.  (And yes, it is somewhat time sensitive.) 

 ::::Are you sure it’s preferable that I not mention any of the details of what this case is and who it involves?  Everything relevant has been stated on-Wiki, including the relationship between the drafting arbitrator and the editor about whom he’s making a proposal.  And I would feel a little more confident about what to do here if I were told that this is the best idea by someone who’s aware of all of the details.