If the person that Don got his info from is Mike Shiver, then the SOURCE of that info is certainly suspect, in my opinion. I've worked with both corns and early on black rats and gray rats for a number of years and certainly had people foist hybrids on me saying they were one thing and my observations convinced me that they had lied to me. Heck a guy by the name of Andy Barr sold me a bunch of neat looking corns he was calling "Frosted Corns" and swore up and down they were pure, but after working with them for a year or two, I felt certain that they were NOT, and I got rid of the lot of them. Some other guy sold me a bunch of really interesting looking "corns" that I later became convinced with simply king/corn hybrids, and they got moved on out as well.
I got my original ultras (which he called "Ultra Hypo") from Mike Falcon and nearly every time I saw him, I grilled him about the origination of those animals. He always told me the same consistent story about how the came from a wild caught animal. Mike Shiver, on the other hand, swore up and down that the animals he sold as "Ambers", which turned out to be Ultramel Caramels (which we now call "GoldDust") came from pure corn stock from the same line that Mike Falcon's came from. After it was determined that those "Ambers" really were not what Mike thought they were, and instead proved to be something rather unique and somewhat more valuable (which I am sure incensed Mike greatly since he had a corner on that market which he lost out on), then from what I have heard, Mike got out of the business and then changes his tune. Which, in my opinion, takes on quite a bit of the coloring of someone just expressing sour grapes about missing out on something.
So apparently there are three people I know of who were originally involved with the animals that the Ultras came from: Mike Falcon, Andy Barr, and Mike Shiver. Where exactly the truth lies that came from each of them, is pretty much anyone's guess now.
So when you hear two different stories from the same person, neither of which can both be true, what do you do? Well you make your own decisions based on your own observations and experience. Quite frankly, I worked with the Ultras and Ultramels for quite a long time, and never saw even the slightest indication that they were anything but regular old corn snakes. If I had had that suspicion, I would have dumped the lot of them. So in my opinion, the case simply is that they either were NOT hybrids, or if they were hybrids, they had been so deeply bred back into corns to remove any of the markers that would TELL they were hybrids, that the point was moot. Just how pure is "pure" anyway? If a corn and a yellow rat snake had a naturally occurring "tryst" 100 generations ago, and those offspring never again followed in that path, does it really matter? NO ONE on this Earth can claim that something like that never happened in the stock that they are claiming is "pure". This runs along with the same argument of those people claiming that they have "pure" Okeetee corns.
Here's a clue: There AIN'T any such thing. That is purely an arbitrary and artificial label that some choose to use for their animals.
Also, I would like to know how it has come to be that just about EVERY new genetic trait found in the cornsnakes is claimed by some people to have been the result of hybridization. It's pretty much a given now that when a new genetic trait shows up, a group of people will invariably claim that it must be a hybrid. I'm curious about the natural law mechanism at hand that works in such a matter that new genetic material can only be created in corn snakes by the method of breeding corns with other species or genera? Along this same line of thought, especially in relation to the ultras, which people are claiming is the result of breeding gray rats into corn snakes, well, where are all the gray rat snakes expressing the effect that "ultra" expresses in the corn snakes? Furthermore, are there any examples out there of some other species being bred with gray rat snakes expressing something akin to what "ultra" does with corn snakes? Does ANYONE have, or know of, examples and evidence of the above to support the supposition that "ultra" in the corns HAD to have (and could ONLY have) been created by the combination of traits provided when a gray rat snake was bred to a corn snake?
Ryan, you are doing a lot of hybridization, I presume from your pics. So tell me, how many new genes have you developed and identified as a result of these hybridization results? I would think, based on what some people are claiming as the causative agent for every new cornsnake gene discovered, that you must be absolutely FLOODED with new genes being uncovered in those hybrid animals.
Quite frankly, I don't have anything against hybrids myself. The world is big enough for everyone to experience what they want to experience and work with at their own pleasure and interest. I, personally, chose to not work with them in relation to my corn snakes, at least not knowingly. At one time I did have a bunch of hybrid king/milks that I got from Bill Gillingham many years ago, but that was pre-Internet days, and I decided to get right back out of them because of the difficulty of selling animals that you couldn't market without taking individual photos of each and every one of them for every prospective customer. I thought they were gorgeous and unique animals, but they just did not fit into what I wanted to do.
Anyway, seriously people, just stop with the derogatory rhetoric and condensation towards someone who just has interests not aligned with your own. Just because someone likes something you don't doesn't make them necessarily bad as a result. You don't have to LIKE what they do, but I don't see any reason to try to belittle them and their interests.