I'm with you on the stock seat, Tracy.
I bought an AirHawk pad for it which definitely helps, but still not where I want it to be.
I have been eyeballing the Corbins, reading a lot of the reviews to convince myself its ok to spend that kind of $
I used an airhawk until recently, it extended my comfortable ride time by about an hour. Broke down and got the corbin dual tour; it makes a world of difference. It is still breaking in, but 600-mile rides are much more bearable.