I’m currently doing the same thing. I posted about it on my account if you wanna take a read. My first batch of F1 chicks are almost sixteen weeks old. Once they start reproducing, they’ll be the parents of my F2 generation. Have a few different goals in mind for the flock. But so far so good. The buff colored pullet is half buff Rock, roughly 25% Egyptian Fayomi, and 25% Leghorn. My goal is to create a better homestead chicken, and my main focus was foraging abilities. She’s excellent at it. Hardly see her during the day, other than throwing out feed. I want very active, productive, chickens.
I will set some eggs from her, after she’s bred back to her sire. Those chicks will be a good mix of Fayomi, and leghorn since I’m doubling back up on her fathers genes. I’ll also back cross her to a purebred rooster, not sure on the breed yet though. Those are two of her half siblings, and or cousins. Easter egger cockerel, and the black one is Half golden laced Wyandotte, 25% Fayomi, and 25%Leghorn as well.
So far, all F1 chicks display better forage motivation and drive than their mothers. Their father comes from a line of hen hatched chicks, raised completely free ranged, so he’s definitely passing on those genes to the offspring it seems. I’m adding in some speckled Sussex this fall to help with egg production, and plumage.