Hi guys, looking for some advice, I've done about 30 or so cornish x rocks I've raised from chicks, and some by eggs over the past year. My kids love my home grown chickens and the meat is very juicy and even seems more dence than store bought. The problem me and my wife have is they really don't seem to be very tender. I find that if I butcher them and cook them that day they are VERY stringy. At the advice of my local feed store I've been butchering them then letting them sit in the fridge for 4 or 5 days then they are MUCH better but still not as tender as I would like. I kill them between 12 weeks till about 6 months and it doesn't seem to make a difference although after 6 months they seem to get very tough. I read about people butchering their chickens and having wounderfuly tender meat that night. Is it the type of chicken? I feed them mostly layer crumble till about 12 weeks then there on pellets with the rest of my birds. They also free range during the day but I usually only see them eating the grain, they hang around the food bowl like a drunk at the bar and never go far from it. Does this matter? Any help would be appriciated, Thanks NealB.