To clarify, you're running Oubtack-spec BC's in the rear, and Legacy ones in the front? Have you removed any of the subframe spacers? I've been convinced so far that my best move is to go full legacy setup and true legacy coils for the ride I want, but looking at your car, I'm not sure how much lower than that I REALLY want to go.
Probably about the same ride height... I'd imagine you almost never bottom out.
18x8.75 +35? It's about exactly the fitment I'm shooting for.