What if the interview session doesn't go well? Would you have the fortitude to walk out, and will they refund you your deposit? I think I know the answers to those questions ("probably not" and "no"), but it's more to highlight that you're taking on an awful lot (clearing your day, getting ready, driving to and from, and of course the $deposit) with a decently high risk (if you're very particular) of wasting it all, when a couple of simple emails could have established compatibility. In addition, many pro dommes tell me they plan out their sessions in advance, or at least have a basic plan -- do you think you gave them enough info (beyond just an interest list) that they could do that?

Anyway, just playing a little devil's advocate, since this would definitely make me cautious for a first session. Subsequent sessions, I'd love it