Here's where I'm at. Please poke holes in my logic if I missed something.
I'm the vig. Scum should shoot me tonight because with 2 deaths I'm confirmed town tomorrow. If I was lying, the real vig would know I'm scum and I'd be shot tonight and flip scum. If they decide to not shoot, that's good for town anyway and the only way they could ever get me lynched. But that delays their goal of killing townies, so that's good for us.
If we both shoot the same player, still a win for town as there'd only be 1 death. If I hit scum, we are way ahead. If I hit town, well....lolverbal and move on with our lives.