i get where you're going w/ ftwr and uk-t, but how was sct exclusive and rare? there was a huge userbase and invites were easy to come by; the main appeal of sct was its speeds, really, and maybe its packs and the design, too
fsc isn't exclusive per se, unless you're talking about their forums (lol), but it is hard to get into and i haven't seen requests nor trades for e**** in forever. i will agree w/ you, however, that ftn still remains the tracker that is both hard to get into (rare?) and has a pretty decent content selection (exclusive?)