You don't have to lose them to health problems before you get them raised. The stories you have read about them are from people who mismanage their CX. Maybe you should read other stories of the breed before you cross them off your list of a good meat breed? There are quite a few people out there raising the CX without any difficulties but you may not hear their stories because they have nothing to complain about with their birds.
Mine roost, they forage better than any other chicken I've owned and they are all healthy as horses. They aren't overly mean or aggressive and I find them quite docile and fun to have around. You don't have to feed broiler feeds to get them to the right size, they don't have to be gross or stinky and they don't have to be processed at 8 wks...you can wait to process them at your leisure.
https://www.backyardchickens.com/t/...have-a-rooster-raising-50-cx-chicks-new-batch
Mine roost, they forage better than any other chicken I've owned and they are all healthy as horses. They aren't overly mean or aggressive and I find them quite docile and fun to have around. You don't have to feed broiler feeds to get them to the right size, they don't have to be gross or stinky and they don't have to be processed at 8 wks...you can wait to process them at your leisure.
https://www.backyardchickens.com/t/...have-a-rooster-raising-50-cx-chicks-new-batch