Hybrids are much more offensive to many people because they are the crossing of two separate species (Cal King and Corn, for instance), but intergrades, the crossing of two sub-species (Great Plains Rat and Corn, for example), is still a problem for those wanting pure corns.
Although the genetics of the two situations is different, the analogy of what transpires in people's minds is the same in relation to the pure bred dog versus the good ol' "Heintz 57" variety. Everyone knows that mixed breeds make good pets, but they are not breeding material for those that want to raise champion show dogs. In fact, they are not even fit for those who just want a purebred pet for any reason. What if you had specifically paid $400 for a purebred german shepherd, and you later found out it had a beagle ancestor? It doesn't change the reality of the dog's attitude, conformation, or beauty; in fact, it may look like the best german shepherd ever. Even so, YOU KNOW it's not a purebred dog, and that makes it valueless for the purposes for which you bought it.
The same is true for intergrade corns. They may look exactly like every other corn in the show, but if it has emoryi blood in it, it is worthless to those who are looking for purebred corns only. That doesn't make them good or bad, it just means that many people are not interested in purchasing them.
What this fact DOES mean for an intergrade owner, is that he has a tremendous responsibility to never allow that animal to produce offspring, which would be labeled as anything other than intergrade babies. Why? Because if he permits his produced offspring (no matter how many generations down the road) to be passed off as pure corns, he has rung a bell that cannot be unrung. Once that emoryi blood has been passed into the corn genetics, it is impossible to later remove it.
Just some things to consider before you start to breed your snake. Hope it all helps --