Not meaning to paint the devil on the wall, but the issue with excess calcium is a long term health issue. Hattie is already an old lady.I'm struggling with what feed to use this year. Hattie is essentially a rooster now. Do I switch to all flock? I wanted to start with at least 1 bag of layer but do I move on to all flock now? I'm not sure what I'm going to do.
That said, if it were me, I would probably mix it up a bit. Either alternating bags or literally mixing it so that the health of both layers and non-layers can be looked after.