I have been very impressed with my "mixed heritage" chickens I hatched. They may take a while to mature, but they are great layers and the cockerels are getting to be pretty big. I have 6 pullets ( 3 buff brahma x rhode island reds, 1 buff brahma x golden comet, 1 buff brahma x black sex link, and 1 buff brahma x easter egger. The easter egger lays a pretty blue egg and usually lays 5 or 6 a week, all the other would lay brown (so I don'tknow who is laying what) but the past week they have kicked it up a notch. yesterday 6 eggs from them. The cockerels are buff brahma x rhode island reds are going to be huge, they are still growing, they would make a good slow growing meat chicken.