I have a flock of big White Rocks and they too lay the same exact type egg, huge and elongated. I do get plenty of double yolkers out of them, I do like bringing in those monsters and putting them in the fridge. I was making some early breakfast for my hunting buddies this past winter and when I pulled out the egg carton to crack some eggs they freaked LOL, it was very funny and led to a few great Man jokes over a good breakfast.