I'm starting my replacement flock next Wednesday. I have been using a non gmo pellet from the local mill on me layers and they look great and lay well. I see that they now offer a non gmo start and grow as well. This is only available in a mash. I have never fed a mash as I have heard that it's messy and they will waste it. I'm not sure if they will take to eating mash as well as the crumbles that I normally use. Anyone out there use and prefer mash?