I really don't know the answer to this question!
I have a "Black pastel" animal, which is very black and from the original lineage named as such. The criterion I am going by is a description to me of one snake being more black with orange tones vs a softer brown color. I'm sure as with everything there is variation. Because quite a few of these animals have come in from the wild and are being bred I like to do things on a case by case basis. We will have the luxury of saying what is what when we have other lineages to breed them to. Right now I have 4 different animals that are not related to each other in any way. In each case I will breed the animal to a normal and first see if it is genetic (I know that at least two are at this point).
Hopefully everyone will keep everyone else updated when these crosses are made. The first indication on the officially named lineages would be to breed the Graziani animal to the Gulf Coast animal and see what happens!