Good luck!
She does mat work and it was helpful before she started spiraling/getting worse. It was even useful in classes (it was most useful in classes). It's still useful at home. We've done BAT, LAT, and CAT - CAT not for very long, LAT made her noticeably much worse in that it would have her scanning the environment nonstop. BAT would be great, probably, if we had more dogs, but ultimately we don't have enough locations/dogs that we were able to get her to generalize. Ie: She'd be okay with some dogs in some locations but still over the top losing it if another dog appeared somewhere else.I am interested in this thread as well. I know it's super helpful to implement more rules and structure on dogs that are anxious, fearful, reactive. Have you looked into introducing a place command? Do you work on BAT sort of thing? Like creating distance from other dogs when you see them out and about and then engaging her with something she enjoys OR even increasing her level of focus work at a good distance away from other dogs?
What are your goals in terms of reactivity?