Sweet pied, i too am looking into gettiong one. 1. You should be fine switching his hides if you wish to, you can always put the logs back if he doesnt like the new ones. 2. They only flick their tongues when they smell food, i usually see mine only do it on feeding days. 3. I would wait a week or 2 before you offer his first meal. Personally i would offer in a week and if he refused id wait 2 weeks to offer again. You could also wait until you fix your husbandry issues before offering so he doesnt get a habit of refusing. Are you planning on feeding live or f/t?