John,
These are good questions. They are tough questions to answer definitively because, there currently is much confusion about the definition of hypnosis. If it is a state of heightened suggestibility, then perhaps there is one hypnosis. In that case, the state can by used or even exploited by a variety of different interpersonal approaches at any/each level of absorption.

If hypnosis is defined by the induction procedure that may facilitate the state, then you certainly may have an uncountable number of types of hypnosis (depending on how many categories of induction your use to classify them).

But, there is no concensus on how to define it - so the jurry is out - there are valid arguements in both directions (and more). So, it really is, as you say, which version do you want to co-create.