I just skimmed through the latest. I'm in Romania and will only be able to read and post haphazardly for a week.
I think there has been one misunderstanding - even if I now think the correct understanding also has a flaw.
The idea of the GW being able to "protect" someone from scrying if she had her roster full and didn't wish to try and scry for the finding of the EW was that she would be able to protect one of her own minions from the EW's scry. Then technically she isn't so much scrying her (the gifted has been scried already) but kind of counterscrying eg. not allowing the EW to scry that gifted that Night.
But thinking this forwards raises a problem as well to the GW, for this surely works for the EW as well as the one who could not be scried but didn't die surely is now a gifted known to be one to the EW.
Maybe that's not something the GW would like to do in the first place as she has a lot of work trying to find the EW by her scries. Clearly with a roster full the GW can go on "identity-scrying" in any case.
Then if both wizards scry the same person that one person dies having received too much magic the same Night.
Also I'd say there will be no open proclamation that the EW has learned the identity of the GW - or vice versa. That's Night-bussiness known only those who may know it.
About communication also one point. If the wizard gives away the identities of one or other gifteds/wolves to one or more others, it's her decision. After two or more know of each other they can communicate between themselves straight. But so long as the identities are not revealed by the wizard on purpose there is no such possibility. To me this would sound fair and straightforward. What do you think?
I try to come back to you sooner rather than later but I can't guarantee anything as the schedual here is quite tight.
Nice to see you
The Ka to comfirm and sad to see you
Valier not to do that...