Props on getting the name right.
As far as chord variations - have you heard a low F# in action on a clean tone? In the proper context, the impact it has is massive. As always, it's more about creativity than it is about hardware when we're talking extended range (for example, a multitude of the bands who use seven-strings could just rather use downtuned six-strings since they're not employing the possibilities of the extended range), and I'm personally all about the creativity.
I'd really like an 8-string with a low B and high A as well, but that puts some strain on the hardware, since testimonials apparently show that when you're starting to put the high A under tremolo and bending abuse with the thinnest currently available production strings (.007's), they snap! This being on standard "25.5-scales.
However, since I tune down a step, it ends up as a G, so I might not have that problem. Who knows? I'll get an .007 with my next string-purchase to check it.
Anyway, I'm as much for a low F# as a high A, but for now, the low F# intrigues me more.