I have choosen to raise heritage breeds for meat birds now after seeing my friends Cx. I dont want to risk with the FR too. So my choices are plymouth rocks, RIR, Australorps, and New Hampshires. Which of these breed or any breed you suggest can grow to 4 lbs in 5 months? I like grandpas fried chicken and he raiese BR when I was a kid so I am replicating that. I am ordering extra layers for this purpose and plan to slaugter in october in time for festivals. thanks!