Your point 2nd b is very much on point and accurate...i don't think anyone can be on top of their game for every single appointment either...that said, i think a guy is not going to either (a) second guess himself or (b) make himself look like a ........for grading someone a 7 or 8 if 10 before him graded a 10....So, my theory is that the first 10 or so reviews sets the tone for a provider's career...She can be off her game purposefully or otherwise but will receive high scores from most "gents".

Your premise is all off.  Reading such reviews does not mean that a girl was "at the top of her game for EVERY appointment"; rather, it is very possible she was at the top of her game for that particular time with that particular person who wrote the review.  A huge difference.  But where you are even more in error-- it is not up to you to believe that someone else had a once in a lifetime experience.  That rating does not relate to just appearance or just performance or just the ambiance; it relates to the totality of the experience.  Beauty is in the eye of the beholder-- not the outside skeptic.

Not at all. Some ladies should be a 15/15. I know a few.