This setup is unique in that everyone in the game truly has the power to make a major shift in the course of events, unlike setups that use blues, bp's, survivors, traitors, and plain mafias as fillers. Yet, the setup still gives the mafia safe claims to make.
A couple things: Villagers taking their actions the first night (especially masons and the doctor) will be risking the game.
Secondly: beware of yakked masons and fools claiming amn, and amns claiming fool. See setup #18566 for an updated version with less powerful masons.