Im not using the new Limacon ART personally, I have more then enough AoE with spread on limacon, retreat and marching, fanning, and shotgun peacemaker. SR gameplay though wildly differs based on the gear, the only thing I really dont have is a swift ark,aside from that im pretty over geared so my AAs pretty much 1 hit ep12 mobs, so with jus turning on spread I take out a few a shot, let alone using my actual aoe skills.
Id certainly look into picking up Sheriff though if you havent yet, reload passive buff is fantastic and it has several good skills.