I have 8 straight run cornish rock chicks. My Plan is to harvest them around 8-10 weeks. Is this right? But is it possible to save a pair maybe for incubation? Im not really excited about having a seperate feeding plan for just 2 chickens. From what I've read, They can only get so big before they are in bad shape. Whats the low down on these birds. I thought I had researched enough before purchase, but I reckon not. I'd like advice on how long to feed them this gamebird starter and then what to give them. Thank you so much.