I use 2 Sophocles in my post-rotation Turbo Dark list, but only because I can't play 5-6 Sycamore or 5-6 N. I play 4 N and 4 Sycamore, as well as 3 Lele and an Oranguru, but I still find myself dead drawing.
It would be interesting to know, in an average game, how many times a player 'uses' Sycamore/N, i.e. how many times it gets re-used because of VS Seeker. By the sounds of it, a lot based on your findings, hence the need for Sophocles, or similar, in decks post-rotation.
Are you suggesting TD will never get back up to the top while FB is around, unless a top-notch Dark specific supporter comes along?Field Blower is honestly the reason Turbo Dark isn't NEARLY as good as it was.