I'm sorry you didn't get better news.
Since you have chosen to not go any further with other testing and if it is MVD the numbers won't go down, why do you want another BAT? I'm just curious because Ellie's were 106 last time but we have stopped BATing for now because in the vet's words, "They're just scaring us anyway".

There is nothing that can be done unless I want to try one more med and no diagnosis can be reached. Maybe I will redue it in a few months but for Ellie it doesn't seem worth it.
Because Ellie's was 106 I still have to wonder if they missed something on the U/S and there is a shunt there. I would wonder the same for Roxy.
I also am very suspicious that vaccines take a lot longer than a week or two to get out of the system because Ellie's number went up to 106 so fast. It was 45 days later but I'm not convinced it wasn't from that.
I want to do a Protein C test but aren't there doubts about that right now?
Did you do one?
Is Roxy on Denosyl?
No Lactulose, right?