Пролетарии всех стран объединяйтесь!
continuing to nostalize with Lutra about old po tours i remebered that po server tours had abillity to join after tour started. My suggestion is to make 2^n tours with bye slots for missing players. Autodq rule will work as always, this slots will be expired in setted time. Or you can continue making same formats for tours but if we have odd number of participants you can add 1 bye slot which can be filled in.