I can tell the feed you were giving them early on has made a difference. My chicks are only 4 days behind yours in age, (will be 4 weeks on the 26th) and, while their feathers are just about the same as far as being filled in, ours are notably smaller in stature. I won't even bother trying to comapre them to your broilers.
I learned alot reading through the thread. If you ever try caponizing, let me know because I'd like to participate and learn how. It's also good to now have an idea of when to harvest cockerels by if I plan on eating them without caponizing. Ours are so obviously "boys" that I don't think I'll even have to wait until 20 weeks, unless I just want that meat on them. But being the breeds they are, I don't think they'll ever have much meat anyway. Chuck was scrawny even at 45 weeks old.
I learned alot reading through the thread. If you ever try caponizing, let me know because I'd like to participate and learn how. It's also good to now have an idea of when to harvest cockerels by if I plan on eating them without caponizing. Ours are so obviously "boys" that I don't think I'll even have to wait until 20 weeks, unless I just want that meat on them. But being the breeds they are, I don't think they'll ever have much meat anyway. Chuck was scrawny even at 45 weeks old.