Very happy with my Corbin Gunfighter when riding 2 up, it is much better than the standard seat, sit a little lower and further back. Just found it took a while to break in, pretty hard straight out of the box.

Gee that a Very Old Corbin Seat, They are nothing like that now. and Dave is right Corbin Seats have to be broken in to your shape and weight as they have a patinted memory foam. Looking at that Seat ZYBAY it this had it day

I ve got a Brand new Corbin Gunfighter listed on Ebay, Way under Cost. it is to fit a 04 to 06 but it will fit your bike just by making a new mount on the Frame.

http://cgi.ebay.com.au/Corbin-Gun-Fighter-Seat-Harley-Sportster-04-06-/220733082915?pt=AU_Motorcycle_Parts_Accessories&hash=item3364b78d23

I did it here

http://www.hdforums.com.au/Default.aspx?tabid=71&forumid=1&tpage=1&view=topic&postid=39122#39122