Sadly anyone can take any pic they want and say it's a snakes parents. I don't do het's unless I know the breeder. If it is a reputable dealer You can take their word for it I would imagine. The other problem with het's are that they might carry the gene but not throw out the visual in the babies for several clutch's if ever. I have good friends that are breeders that have het's that have only produced 1 offspring that is visual and it was after 2 years of breeding. You know they are 100% but just don't always get the visual baby that you want.