I will add my two cents....

If they are going to take early registration's I would hope that those registration's be put at the end of the list so that those who where able to get in thru the phones will get the lowest numbers on their reunion pieces, since that is the way it was intended "first come first serve"

And secondly if they should receive more registration's than they can handle in the alotted time, that all registration's then become a lottery (each slip being 1 phone call, 1 couple, family, or solo) then draw slips until you have the desired number of people or have filled all available rooms.