The young ones have settle in, but are at low end of the pecking order. They don't always stay with the flock when they're free ranging. He did start mating with them once they started laying it seems. It is still a pretty new thing though. And yes, his top hen looks the worst.
And thanks, it is so nice to know that have a good setup, especially since they may spend quite a bit of time in there this winter. Last winter, the original flock had a chicken tractor as their coop, so this big coop will be "new" this winter for them.