How to rescue 'dry' carnitas?
It is the fat and connective tissue breaking down that give pulled pork the luscious mouthfeel you describe. Smothering it with barbecue sauce would probably help, but my favourite thing to do with leftover or less than successful carnitas is a pasta sauce. I just add the meat to a good tomato sauce with appropriate seasoning and let it simmer for 10-15 minutes.