maybe its me i'v been riding over 45 yrs have owned over 30 motorcycles the F6B is the best stock seat I have ever had. I had mustang (which I really liked,) Corbin's, travelcade even the Ultimate. The only other stock seat I ever liked was a 1987 venture royal, this Wing seat lets me do 400 mile days with no problems. Not to knock the Corbin but I had 1 on my Valkryie an after 3000 miles sold it ( maybe I don't have a corbin butt) to hard ( num butt) an now you're telling me 15 large? I just might till I hit 100,000 on my F6B then think of replacing it.