I have noticed some providers get scores for bbbjcim and even anal that are 6's.  I think sometimes hobbiest score what everyone else scores.  I look for a pattern.  It it is consistent, like 7-6 then i am not deterred.  I also try to tell from teh experience the hobbiest had.  For instance she might have a great ass and small tits but the hobbiest scores her low because she has a small chest?  How did he not know this going in is anyones guess.  One of my favorite encounters was from a 6-5 girl who I thought was being scored low and not taken advantage of what she could offer and I was right.  One of the best bbbjcim's i got.