Bob, I was taught that a hen retains the seed of the cockerel for up to 40 days post cover... If that's true, how can you know who the 'father' of a chick is if you rotate cockerels so often? I'm still trying to understand that.
Also, a lady I'm working with says that with her Icelandics, if she rotated them in and out like that, her cockerels would get depressed and not eat. Will this only work with certain breeds that aren't so 'bonded' to their mates? Because, I had considered having a 'barracks' for breeding season, where I would remove my breeding cockerels to for a few weeks prior, then place C. A with hen set A, and C. B with hen set B, then collect eggs for a while, then remove the males for a few weeks, and swap C.A to hen set B.... etc.
Then, I'm STILL trying to understand how you know which eggs belong to which hens when you've got 3 or 4 running about in the same pen? I suppose over time I'll 'know' whose eggs are whose... like with my banties right now it's obvious by egg shape and time of day. But, that first season, all new hens, no 'feel' for who's who...
Okay, that's enough to give someone a headache, I'm sure

Good thing I've got at least til late Winter before all this is gotta be set in stone.