I would play it by ear and see how knowledgable the vet is about snakes, while asking questions etc. I recently took my corn to an "exotic vet" and I knew more than her about snakes! She had a basic understanding, but told me all kinds of crazy stuff (i.e. my snake can eat fish) So, after that I would NOT let her probe him, even though she really wanted to. Most vets are probably pretty good (I hope) and you won't have the same probs. I did. Just see how it goes and trust your "gut feeling".