First off, let me just say that I am not a "breeder", well....maybe that's not exactly accurate, but it's getting to the point where I really don't want to be labeled as one. IMO "breeders", in general, are perceived to be "bad guys" in the eyes of a rapidly growing number of people in the general public. Look at Craigslist for example, "breeders" are not even supposed to place ads for animals that they have bred. Now, I'm not going to pretend I know exactly why that is, but.....I'm pretty sure it has something to do with the fact that so many "breeders" are solely in it for the profit and the vast majority of "breeders" don't even take the time to learn anything about genetics before they breed their animals, much less the possible genetics of their own animals. Many, many "breeders" don't even care if their animals are healthy enough to breed. Then, there is the ever growing number of unwanted pets. And yes, this perception is mainly due to dog breeding, but it doesn't stop there and will only continue to get worse, for "all breeders", even the great ones. Ok....I am new to this, in a sense, and obviously naïve, because, when I posted this thread I really expected to get a straight forward proven answer. I honestly expected that it had been proven not to be a genetic trait. It was a bit frustrating to learn that no one really knows for sure. We are either culling animals, that with some work, could become great pets or even great breeders because there is a possibility of genetic problems with the animal. At least I hope "possible genetic problems" are why animals are culled, and not just because they are a "headache", that would be just... cruel. Or, we are placing animals that "might not" have any genetic problems into the public where they "might not" be bred and the offspring of those animals "might not" have or carry genetic problems, and so on, and so on. If it is genetic, I really hope that this is not how we find out. For now, no matter how cruel it "may" be, I intend to cull my snakes when they reach the status of what I believe to be a non-feeder. I'm just not willing to take the chance that my non-feeders could possibly contribute to genetic problems in the future. IMO... A "breeder" should eleminate ANY and ALL possible problems that could possibly be passed on to future offspring, by means of not breeding these animals and being 100%.......100% sure that these animals will never be bred. BTW, my wife, Kerri, feels I am making enemies (I hope she's wrong) with this thread and she just wanted it to be known that it was not her thread, all post were written by me, her husband Jerry.