I have my first batch of a couple dozen CornishX landing here in a few weeks. Truthfully, the wife and I are not big eaters. More interested in feed to weight conversion. It looks to me like they grow fastest in the first 4 weeks. What is the earliest time frame that you have butchered? I'm thinking that I may butcher some at different stages from 3-4 weeks, 5, 6, and maybe 7 weeks. Has anyone done this? And if so, did you keep track of feed to weight at different stages?