I know this is an older thread, but I have to say I'm totally happy with the 13 Dark Cornish that I got from McMurray.
They're only 5 months old right now, all pullets. They are not all the same size, but are all very beautiful and some are very large. A few are smaller, I haven't weighed them yet, I'm waiting until they get older. Beautiful birds and great temperament so far.
Here's a pic for reference.

They're only 5 months old right now, all pullets. They are not all the same size, but are all very beautiful and some are very large. A few are smaller, I haven't weighed them yet, I'm waiting until they get older. Beautiful birds and great temperament so far.
Here's a pic for reference.