Any tips about balancing a setup?

[Mr. Flay]

Also keep in mind that some roles imply other roles; for example, an Even-Night role implies an Odd-Night role.

From experience, wrong. It's more often than not a sign of lack of creativity when it does work like that--many mods are more adventurous with their setups than that.

I find it fun sometimes to imply roles that actually don't exist. Like putting in a godfather that has investigation and kill immunity when neither a vig or a cop actually exist.

This is a great trick to pull on occasion, because you get the Shadow Cop benefit - Mafia will start to make suboptimal decisions based on the Cop/Vig they are trying to avoid.

[Mr. Flay]

Yeah, Shadow Doc is worth even more than Shadow Cop, because of how often real Docs (fail to) hit.