Fisher Seats in Eagle will customize your seat for you. They have you take measurements and ask your preferences and build a seat that is custom. I have one and I love it. Send them your seat and get back just what you want.
we had fisher build one built for the wife's wr450/TSled bike, went with the 10" wide/soft version, looks AWESOME. it is a lot softer than the stock seat. need to wait til next season to test it in riding conditions. I am probably going to have them build another one for mine this summer. Ski