I have a question. I have a Jersey Giant. It took me awhile to figure out who was laying double yolkers, but it is our biggest girl. All spring I fed pelleted layer. And then, I had a duck get lame, so I've switched to Flock Raiser and added oyster shell for the hens. OK, so all spring, I would find no shell eggs that were consumed. After I added the oyster shell, we had the biggest double yolk egg ever. Since the oyster shell, no more soft shells. So I guess that girl needed more calcium than the others. This morning, I collected an egg that was coated in yolk. And there was yolk painted on the shaving. I found the girl with the yellow butt and it was no surprise who it was. So I guess, she had a yolk in the canal in front of the egg with the shell. Is that yolk residue going to cause issues? Any questions?