Question: How does it handle chatty situations? For example if two people start spamming my alt Bazan, I can reply but is it likely to cross tells? (Simply using the Reply feature on one client it would be...)
It would be just as you described. You would get cross tells. I designed this mod to behave JUST LIKE regular whispers. If your alt gets whispered from Tom after a whisper from Bob before your main responds to Bob then your response is going to go to Tom.

Feature Suggestion to handle that: Allow the prepending of [Targetname] in the reply, it would allow you to direct the alt to send whispers to a specific person if desired.
mmmmm.... feature requests... /drooool

I'll see what I can do. Can't promise anything but I will look into it.