I thought they worked on the same allel with both genes making a pied looking animal, kind of like fire and and a Mojave, they both make a white snake but if you breed a fire to Mojave you will not get a white snake, if that's the case then technically Brian would be correct they are all HET for a pied looking animal. The leopard gene seems to have a stronger HET marker then the pied. If there was a super leopard why would they not be blasting the internet with pics or trying to get their name on WOB as the first to make it. that's just my opinion though.