For sale is a barely used Seat Concepts (SC) seat with standard foam and the "carbon fiber" cover installed on the stock seat pan. The seat was professionally installed by a motorcycle upholsterer.
The seat seems to be best for taller folks (maybe 6'2"+?). I'm about 5'11 and I can reach the ground, but not as comfortably as I'd like, and I sit a little farther back from the handle bars than is comfortable for me.
What you get is a practically brand new seat, professionally installed. All you have to do is put it on and ride.
My total cost was over $300 (including foam/cover, shipping, installation). You get all this plus a seat pan for $250, plus you can probably get at least $100 for your stock seat.
I also have the stock foam I can toss in for little more.
for some pics and reviews.
I can upload pics, just haven't gotten around to taking decent pics yet...