Amathal, the way you set yours modes up, it would just screw over the huge segment of raiders in between bleeding edge and those who want Karazhan difficulty
I bet most raiders dont want SSC pre-nerf (tbh, I bet most of the bleeding edge raiders dont even want that, most people just seems to want forgetting SSC entirely!), the majority of the dedicated raiders simply want challenging bosses they can do without being the "top 100" in the world. (Which is why the whole casual vs. hardcore dichotomy is, as always, damn silly and useless)
That said, those who want to be the top 100, should also feel they get something out of being so. Not necessarily "higher ilvl purples!", just something.