Those are awesome! I'm a big fan of black back Cinnamons myself. I just produced my first cinnie as well and have another that doesn't want to come out of the egg. The one that just hatched isn't a perfect black back like dad (I don't think he was a genetic black back) but what I've seen of the one that's still in the egg looks like it is. Odds sucked for me on this though. First clutch was 5 eggs, all of which hatched, but only one cinnie. Second clutch was 5 eggs but 3 went bad and it looks like I might only get one cinnie from that one as the remaining egg was cut tonight and I don't think it's a cinnie. Anyway, congrats on those black backs!