http://ball-pythons.net/forums/showt...7-Orange-Belly.
http://ball-pythons.net/forums/showt...Graphite-Ivory
from what I can remember the graphite's and ultra ivories are thrown random from that line of YB's, not sure if you would get them if they were mixed with another line of YB's.
theoretically from your breeding super orange belly(ivory) x YB = 50% YB 50% Ivories.
I don't really see how tell a orange belly from any other YB just on looks. Maybe someone with that line can chime in.