As a current SSG WR holder, the extra layers are often not a major disadvantage because of the new cave terrain gen and addition of moss. Although I can't speak for RSG with as much confidence, We've completed a very rough 1.20.1 RSG Duos run in ~1:30:00 that we could probably cut in half so I don't think it's unreasonable to leave them in the same category. Good question though, we asked that as well before we started.