If one more signs up, we'll have 16 folks. That gives us four rounds of fighting. I think once we get a full 16, I'll close off the main bracket and open it up to reservists to that if someone has to bow out, the tournament can proceed.
After some careful consideration (read: looking up how complicated and drawn out double-elimination brackets are), how this will work is that every person who loses their fight prior to the finals will be grouped together and will fight a battle royal for the right to challenge the victory of the finals.