I have the same problem with the seat as you do...not comfortable and you do slide forward. I just bought the Airhawk inflatable seat and I am VERY happy with it. I just have to remember to put it in my Givi bag when I stop because at $165.00, someone else might like to have it. It is cheaper that a Corbin, tho´. I can ride all day and not have a problem whereas before it my butt was hurting within the hour. Hope this was helpful.