Ah.  My assumption would be- how would we get on a private channel without determining which channel we're on?  That's why the signalling.  Yes, being sneaky, but not by having Marks listen it, but by trying to dodge all of the<em>other</em>ears.<br/><br/>Edit:  Hrm.  Should we leave it as-is, or do you have any desire to change it?  I think I rather like the "the Davionistas can't cooperate" theme that's going.