Ooh! Really? My experieces with reading B&D or D&S literature from the mid 70s to the mid 80s was that most of the Tops had previously been bottoms. (This was emphatically NOT true of the S&M stories, however.) I realize we're talking apples and oranges here (what I read and what you experienced), but that was my introduction to 'the lifestyle', so that's what my images of it are predicated on.