Thanks for the quick replies, LGray23 the ones he's feeding on at the moment vary from just starting to grow hair to all hair visible, he does exactly what you said as well and hides solidly for 2 days after feeding, however the issue I was having wasn't that he wasn't eating enough, I was just worried about over feeding, he seems to be growing fine in lenght and girth but his head seems to be staying small, it may just be me though! SerpentMerchant I will definately weigh his food items at his next feed to see if this can help!