OK! This is what I've been doing with the yearlings for the past month. I'm giving them equal portions of moistened Mazuri and Zoo Med Grassland. I mash it all up together, add some well-chopped Ready Pac Santa Barbara (which is all endive, escarole and radicchio...no lettuce) and they go nuts. Of course being yearlings, they still have the attention span of a gnat and need to be guided back to their food regularly...where they go nuts again. This has helped them make noticeable gains in size.