I'm working with the albino gene a lot this season and last season. You can really see what the het albino gene does to the normal. I've also seen what it does to spider and Mojave. It tends to throw higher white spiders and super light mojaves. When I have some time Tomorrow I'll post some pic's. I do believe that the "het" gene can sometimes manifest its-self but I do agree that they markers arent 100% accurate. If you know the animals and bred them you stand a higher chance of guessing whats what.