Ok, after reading this surprisingly long thread, I wanted to add a couple of things.
1) BEAUTIFUL snake! Absolutely love the colours, I had no idea that's how jungle's looked! Might see if I can get one to add to my collection...
2) now here's the long bit. As I was reading this I was thinking (and Serp beat me to posting this!) if hybrids are so 'inherently' wrong then why are viable offspring produced?
I'm not as up on genetics as some, but I have a basic grasp of natural selection, genes and evolution etc. and from all my teachings on these subjects I have learnt that if, by chance, 2 members of different spp mate and the proposed offspring would be 'wrong' then no offspring would be produced. Or, in some cases, offspring are produced but they are infertile so as to prevent furthur generations (I think this is the case with mules and asses? Donkey x horse = infertile offspring).
But, I have to bring this point up. Many of those against hybridization are arguing cases saying how it could destruct nature as we know it etc etc. OUR SNAKES ARE CAPTIVE! There is nothing natural about it! So, technically, I don't think these arguments are valid. Sure, I agree that all hybrids should be properly labelled as has already been discussed but how can hybrid corns be of any threat to the natural (non-endagered) population? I am, of course, assuming that all herpers are responsible and do not release captive bred snakes which, in my opinion is very wrong and would cause concern with genetic variations etc. I hope this makes sense, I find the whole genetics thing difficult enough without having to try to write it down!
Basically, I think out crossing is fine so long as they are proerly 'labelled' and not sold on as pure breds and they are not introduced to wild populations.