First off the shower is not always a waste of time, depending. C&C you are most likely correct, I have not been with Sandy I have always wanted to. The only thing to say is that not everyone gets treated a little different. It may depend on the size of the tip, how long someone has been a customer and how good the connection is with your provider. I know that at times I receive a higher level of service, but knowing a girls typical service it is not a good idea to post the additional service information. Of course that does not mean that that girl doesn't offer it to other preferred customers.
I really do defer to you, C&C in this case since you have seen her that number of times. Everyone, please remember that you do not have to spill the whole basket of beans out in your reviews. Some of that goes above and beyond giving the girl a good review and recommendation.