That is exactly what "taking one for the team" is all about.  You see her and then write a review so that we "the team" know if she is worth seeing and what is on her activity list.

Go get em'!

to read between the lines on her website or ad, if you can.  Then you have to decide yes or no.....  It sucks, but I can't think of any other possibility.  Happened to me once on a date set up by a provider  friend, hopefully never again.

Swim

First, not to be a dick, but she might not even be for real (fake pix, upsell, cash & dash, etc).
That's the first danger of TOFFT.

Then there is the issue of services. Once that you've established that she IS for real, you make the donation and get comfortable. In my experience, the best way to get a bbbj from a girl who may be on the fence is to be VERY nice to her, and be squeaky clean. Like, scrub at home and then go to the toilet when you arrive and give a quick wash n wipe. Won't matter if she is the nervous type, or confirmed CBJ girl, but it's the best you can do.

Good luck.

Nearly everything and anything can be discussed if you can finesse that.  Instead of asking her point blank whether she requires a cover, you can say things like, "I hope this isn't too forward, but there are certain things that I am looking for in a session, and I really don't know how to broach the subject."

If you phrase it that way, chances are much better that she will be open to talking about things.  If she isn't, then she will say something along the lines of, "I understand, but I don't talk about specifics of the session."

And then you can make your own decision.

To find out unanswered questions such as cbj vs bbbj.