We just harvested our second year of Freedom Rangers and only had 1 mortality out of 60 birds. They were active, foraging and healthy when harvested. We ordered two different batches of 30 separating them out by 6 week, butchered our first round at 10 weeks and our second at 12/13 weeks and there was a big difference in size and meat in those 2/3 weeks. I would highly recommend waiting the extra time. This year we started them with Duvert Vitamins and Electrolytes right when we got them and greatly helped with the leg issue we had last year. In my opinion there are no better meat bird out on the market.