well, in my opinion and from what i had read b4 keeping beardies, its beardies who arent the huge hunters and can do with them slowed, i mean they eat from a bowl whereas many reps wont, being omnivorous is part of it i think, whereas with geckos you should leave them to it, beardies like to be hand fed, not sayin u should what i really mean is they dont need or want to run there arses around after food.
Ofcourse if ur beardies catch the food unslowed then no need, but escapees are a bitch and well... beardies are a bit wussy arent they...
in the above mentioned case the beardie is having probs catchin the crix.