Yes, Kevin's interpretation is the same as the way I see it.  But this is only a small part of what Gregor presented in his last email.  I really don't understand where all the other stuff fits into this.  I get the feeling Gregor has designed the entire system and is now feeding us little bits at a time (currently "special states").  When we suggest alternatives Gregor seems to respond "No, that won't work because all the rest of it will break".  I find this very frustrating as we seem to be going around in circles.  I don't know what the solution is, but I'm pretty sure this isn't it.
 
Steve