If you're talking about For Goodness Snakes line, he explains them in some of his Youtube videos. They're from a very gold Normal (I think) to a Mojave, then just bred back into each other. I believe he said the normals from the Gold Blush Mojaves are always a bit more gold than 'normal'
They're what he is known for (and his massive Big Mama BP), so he does make frequent videos on them.
He's excellent, I've been emailing him lately about getting one of his normals. His customer service is great, usually emails back right away. I believe his mojaves are hard to get but he probably has some normals though which are stunning. There around $200 though...