production layers

My flock boss, Willow, a hybrid RIR, is having a rough summer. Health-wise, she'd been great. She's almost 3.5 years old and she's been laying quite well all through the summer--though, slightly less than the previous summer, which I understand to be normal. However, over the last week or two...

So my Isa Browns have had enough time to start laying regularly and my RIR rooster is mating them. (yolks have bullseye) I am planning on setting some with my next batch of eggs but my girls lay double yolks quite often. I don't think a day goes by where I don't get at least 1. So my question is...

We are trying to produce our own Golden Comet type production layers. To do this, we purchased Rhode Island Red roosters and White Leghorn hens. We have had two hatches so far and have only had white chicks hatch. Has anyone else tried this? From what we understand, this means we have all males...