Went back thinking about this for some reason.
I remember how we went through so many versions of Vader saying “Your mother once thought as you do”, and while we got close, none of them sounded perfect.
I know people suggested this, and while I wasn’t crazy about it at the time, I think playing with “Padmé once thought as you do” I wouldn’t be so bad if it sounded right. I mean, Luke name drops Anakin Skywalker in this scene, why couldn’t Vader mention the mother’s name? You could potentially have Luke say, “My mother” offscreen, and Vader could even say “Yes” or “That is correct” in response.