It really depends on where we are meeting.  I've seen you at my home and you were dressed in business atire.  That was completely fine for me.  

I guess it always better to decide on the conservative side in any situation.  As a man, I always think about the interaction we have rather than the clothes a lady wears.  The only reason to be conservative is to keep a low profile at the man's location.

I think you have the right idea when you are meeting someone at their home, office or in a hotel.  There is no need to raise and more eyebrows than you have to for his security and for your own.  What might be provocative for one person can be conservative to another.  Each person is different and might prefer one form of attire over another or find one sexy and one not.  

When I use to see people at my house, I preferred them to be dressed conservatively as I live in a very quite neighborhood with very few cars.  If you are dressed in a manner that you could just about anywhere, especially for day appointments, it should be fine. At night you can dress more in evening dresses or pant suits.  To me there is nothing wrong seeing a woman in jeans with shirts, tees or sweaters.

I think when someone states that you arrived dressed conservatively it is a good thing for most of us.  It makes us feel a little safer about inviting you to meet us.

At your location that is a different issue.  There you can dress far more provocatively.  I have had several providers ask me how they should dress.  I really do not care and like the surprise.  There are many guys that might want a certain look and it might start the session off on the right foot.  I am not really a big fan of the provider opening the door in skimpy lingerie or naked, but I feel I might be in the minority on that issue.

I do not judge a person on how they dress and would prefer them to err on the conservative side.  A session is judged on the performance and attitude once the clothes or at least most of them come off. That is what will make me return or not, not an outfit.

favorite birthday surprise:  opening door to find trench coat clad girlfriend, flashing me lingerie, announcing my present was pink and more pink.  yum.

incall pet peeve:  showing up to see a beautifully clad female who instantly disrobes.  if you're going thru the hassle of looking nice, allow us to enjoy the view for a minute or two, at least.  

when in doubt, dress conservative outside, frilly/sexy underneath or with change of clothes in travel bag so you can change in bathroom if necessary.