I was happy with the breast meat, but I don't have enough of a basis for comparison to know if it was larger than your average heritage bird. The legs and thighs were certainly more meaty than similarly aged mixed cockerels (EE/Sussex and EE/BO) I've had in the past, and I would say that the breast was somewhat more meaty, but I can't really quantify it more than that.
My only other chicken butchering experience comes from CX, and it is going to make the breast meat of any other chicken look tiny. To compare, the de-boned and skinless breast from my 13 week old CX rooster weighed 2 lbs.
My only other chicken butchering experience comes from CX, and it is going to make the breast meat of any other chicken look tiny. To compare, the de-boned and skinless breast from my 13 week old CX rooster weighed 2 lbs.