This might help you
http://ducatitech.com/ducatitech/4v/maint/rockers/index.html from our sponsor, California Cycleworks. I don't know if www.megacyclecams.com 415 472 3195 still offers this service. Also, post good photos. Shiny and dull are relative. The rockers are not shiny new. Your finger nail is also a good indicator of surface quality. How many miles on the rockers? Original? If replaced, when. Just an opinion. If those rockers have never been changed and the bike is low mileage and in good condition I would go ahead and change them as preventative maintenance.