I have a few Rhodeisland-barred rock boys. At what age should I process? Right now they are about 16 weeks. My plan is to lock them up for a few weeks and fatten before d-day. Right now they are free ranging all day. I understand they will not compare carcass wise with a cornishX but I will have a constant supply of these, so getting a good system down for utilizing my excess boys is my goal.