I get around this by feeding all flock crumble instead of pellets, so everybody can eat it. I have a zero waste feeder (waste is usually pointed out as the one advantage of pellets over crumble) so I really have no reason to use pellets.
I use Purina's all flock feed too, 20% protein, and crushed eggshell on the side. Works for all ages and kinds of chickens. I've never used layer feed and never will. I don't like the idea of the flat-rate pre-added calcium - their needs vary a lot throughout their lives, so a flat rate isn't a...