I had a local seat maker build a custom seat on top of the stock seat pan. I chose this option as I was able to visit his shop, and have the seat custom made to fit me. We did several test fits, and I actually rode the bike around on the unfinished seat for a couple of days at one point to make sure we had the right shape. That proved to be very worthwhile as we made a couple of minor changes after that. I don't think it is the most attractive seat I've ever seen, but the shape is the result of what fit my butt, and that is what was important. The passenger seat was made to match, and utilizes a custom fiberglass seat pan. Here is a picture so you can see how it looks.