I was wondering if anyone has raised red rock or red sussex cross roosters before as a meat bird. The hatchery where we got our birds from advertises them as a good dual purpose chicken and we are thinking about ordering some until we can hatch out our own meat birds from our White Rocks. Its only about $30 for 25 of the cockerel chicks. I've read that a hybrid will grow faster than a purebred, does this apply to dual purpose crosses as well or only to the cornish crosses? Does anyone know if they will grow as big as White Rocks? Does anyone know when they usually start crowing? My White Rocks started crowing at 12 weeks or so, its not so bad because we only have 9, but 25 roosters crowing would be overkill and we'd need to process them pretty much as soon as they start to crow. I'm wondering if that is too early to process. Anyone have any opinions?