I have no idea about alternating that stuff, I would do what the vet said. As far as the syringe feeding, I would wrap the dragon in a towel and gently put the tip along the sides of his mouth until he opens. It takes time though, and stress. But if he's eating as you hand feed, just keep doing that. I was only thinking if he stops eating. I would get that mega-ray asap. It won't "cure" the MBD but it should stop it from progressing, and it gives off great heat too. Take it from someone who regrets not getting one for their rescued dragon. Good luck and I hand it to you for doing what is best and trying to make it right! Kudos.