Well i'm not an expert by no means of anything, maybe the closest I get to an expert is in the construction field; but feeding you're grey worms or insects sounds a little...hmmm...out of the norm? You say, "I am willing to risk the flinging of critters by a TAG who is mortified" I am confused? If you want to feed your grey an exotic supplement why not the african palm nut? Maybe i'm not understanding your question. There are many great market diets out there and good supplements too. Why risk with insect larvae like silk worms which are more suitable for reptile diets? These are more suitable prey items for reptilian pets who have a more potent digestive system. I don't know, I would suggest no.:dry: