I think that Bomb should claim Day 1 and that you should also lynch Day 1. Gunsmith should never gun anybody but the Bomb. If you out PRs Day 1, big deal. You still have a 50% shot at mafia if none are ccd.
It's an even better trade than standard mafia. If you're right, you lose 1 town, 1 maf. If you're wrong, you lose 2 town, 1 maf. In any other mafia game, if you're right you lose 1 town 1 maf, and if you're wrong you lose 2 town, 0 maf. Just do it.