I would prefer 18% all flock, and it's what I will buy this weekend. Mine I suppose have found out that they must eat what is there, or they will be hungry. They eat the pellets just fine, and there isn't as much fine dust, so I think it's actually a better value. Just my opinion. Lots going on at work today, go to KSL.com and read all about it.......We tried pellets with our girls too and they went on a two week hunger strike. We started putting them through the blender after the first week. Still no dice. Crumble only now. Who knew hens could be so picky.