I have massaged several fbsm suppliers over the past 5 years but can only give you one tip : YMMV Your mileage may vary. In fact your mileage will vary. What one lady will do with you or me is not the same as what she will do with someone else.
Some SPs never do anything other than what is mentioned in the profile. It can cost you a lot of money to continually get the "standard" service, It helps if you are clean, respectful at first and have a good body. For afficiandos of the fbsm scene the object of the exercise is to get more than anyone else gets. You may be successful you may not. For most punters it is of no interest all this messing about. Pay your money and shag a prossie. Job done. For some, however, it is a game and the thrill is in the chase. Up to you whether or not you want to play but have plenty of cash and plenty of patience.