try the baby oil again. and do this....
for about fifteen minutes just dab your fingers in the baby oil and rub it into the tail. just keep rubbing it in and make sure the tail absorbs it. the next day do the same. then keep the dragon in some water for a few minutes. oil it again and this time when you oil it " roll" the tail between your fingers ( carefully, obviously you don't want to scare the guy and make him break it off) and look at your fingers. this is what i did for mine like i said before and it still wouldn't come off all in one piece, but it all in fact did come off but in little pieces that were all stuck to my fingers. also like i said before, there were little rings around my basilisk's tail where the skin was cutting off circulation and the diameter of the tail was smaller in these areas, it made these go away and free up blood flow to the tail within the day. i'd say it's worth a shot if you haven't already tried using baby oil in this way. good luck.