I just put a Corbin Hollywood Solo on my Fatboy. I was expecting a firm seat, and that's just what I got. I only put about 40 miles on today, so I can't comment on the long ride comfort. So far, it's firm, but comfy. Although when I ordered the seat, I wasn't looking for comfort anyway, I was just looking for a small seat, so i'm not too concerned how comfy it is. My butt seems pretty tolerable to most seats.