Oh, I see. So you’ve found a way to make the support serve double duty as support and also a brim in that particular area.
Have you tried using trees as support? I’ve moved over to those whenever I can because, as default settings go, they provide the minimum needed support and are easier to detach and clean off the from the model.
That said, I received my AMS just recently, and I look forward to using different filament types in the interface layer. That should make cleanup even easier.