I have 11 chickens who eat out of one large hanging feeder. The mostly eat in the a.m. before I let them out, then again in the early evening before turning in. In the morning, some are at the feeder, the others are still on the roost. Then the next shift comes in. Sometimes a royal matron or two will chase the others off, so there's lots of in-and-out, trying to get to the feeder. Should I add another? Or do a long-run PVC pipe feeder?