correct, due to the possible sex linked genes egg laying genes the rooster carry, will be inherited by its Daughter pullets, while the cockerel of that cross will inherit any sex linked Type/body size shape from Their BO mother,
in short the Boys will look more BO in type and the pullets will...
While egg laying traits and body type are a polygenic trait, some of those genes are beleived to be sex linked so if you are wanting to have pullets of that cross to lay as much as possible giving the parents genetic make up I would cross a Barred Rock Rooster over a BO hen, this way the pullets...