I have several Marans eggs. If they don't glow like a real dim lamp shade their good. My EE eggs were very easy to tell.My turner has them big end up so I'm not familiar with that type of turner. What color egg shells do you have? I have a rally hard time telling on my Ameraucanas, OE, or BCM because they are so dark. I personally go with the philosophy that if I can't tell 100% and they are not smelly then I keep them in. I've done the other before and their were live babies in them.![]()