I am using the DLM, and under the feeder is almost solid food, 6" deep. I scooped a bunch of it out today and threw it into the run for them to clean up, then I filled the hole with fresh shavings. So is this a common thing? I know the little darlings are not the neatest eatersthey seem to scratch as much as they eat. I am not too concerned about wasted food as much as drawing varmits to a food source.