Well first of all, a review is never a sure value, we all know that. She can agree with somebody, not with another...
As for less review, what i picked up over the years is the indies have a very regular base of customer. Mostly because those customer can contact them directly, they can even reserve a spot each week if they want to. Agency girls tend to work unregulary, cancel there shift more too (unless its GG because i know Mike is strick on that lol) and also they see more different clients as people want to try out the "flavor of the month". When a client has seen an indy 12 times, he won't keep reviewing her..
It looks to me the client base itself is very different. Lots of guys either go only for indies(or mostly) or they use mostly agencies. Sometimes it can be a lot of factor that influence this, but in the end thats what i picked over the years in this hobby.
In any case, trust my word on that, don't be shy to politly ask if she provide CIM... or whatever else you may like. Im not saying mail/text her and start with "Hi, you do cim?" either lol, like everything there is a way to ask, present yourself first, explain what you would like to get from a session, anyway you know the drill. If you would only know what indies sometimes receive ... :crazy: a client with a serious extra inquiries is perfectly normal to them.