I'm not happy with the growth rate of my current number one batch. They will be 10 weeks on Wednesday and are dressing out 3 to 4.5 pounds, averaging about 4.2 overall. The came very cheap, but if it costs me an extra dollar to raise them, and they cost me $3 at sale time, what did I gain by buying for a dollar less?
Of course, it could be the grower and not the bird, but still, I want to try some other hatcheries in the fall.
I'm selling mine, but the same logic applies if you grow for your table. You grow it two extra weeks and they still return a pound less than the better strains, have you really gained anything by saving that dollar at order time? And that is setting aside the extra labor you put in for those extra two weeks.