Very similar experience to mine. I was a very regular visitor to her over the last 5 years, died down into the last two. But have to agree her service has declined, maybe it is she has met someone. There's isn't much I've not had from her either in the past, it always seemed to me, the more regular you where the more you got. If you didn't go for a while it seemed she took a grudge and when you went back the service reduced.
I also think it's the amount of years she has been doing and the amount of guys she see's day in day out and she is just burning out. We all know thais especially nid is very money orientated.
Also I have seen reports of guys getting B2b from her, now like I said I've had plenty more than HE from her, fully naked etc but whenever I've asked if she does B2b she has always said no and has never offered it.
Now B2b can be interpreted a few ways, maybe guys because she was naked class this as B2b. But for me she never gave a proper B2b. Strange as she had no probs with anything else.