I am planning on integrating and I have read everything on it but the only thing that I haven't heard about is about the nest boxes. The layers need the nest boxes open but the pullets need them closed so that they won't lay in them instead of on the roost. What do you do about this? My pullets are older but they haven't had a great opportunity to figure out the whole roost thing out. Any info would be good. I'm going to integrate them real soon.