I agree with Roland. Sort of. Regular line-breeding is not
generally bad in snakes.
While you cannot drastically narrow a gene pool without increased statistical odds of drastic mutations, it seems snakes tend to mutate in a way that is favorable to the hobby, such as color, pattern, or size abnormalities. However, the risk of
any genetic mutation can be increased in this way. There is also going to be added risk of bone deformation, decreased function of one or more organs, infertility, etc. These, obviously, are unfavorable traits in the breeding industry, so to say you can safely do it, without some sort of disclaimer is probably not entirely accurate.
Assuming you have two healthy, defect-free snakes, your odds are in favor of something cool. I just think it should be mentioned that care should be exercised. By that, I mean inbreeding selectively. Most of the defective animals I've seen come from inbreeding existing morphs, animals which are already likely to be heavily inbred. I, personally, find the risk of creating an animal that I will have to euthanize unacceptable. Does that mean I think inbreeding in the pet trade shouldn't happen? Of course not. I just don't want to be personally responsible for the one that isn't healthy, no matter how unlikely. Unless you intend to make a new morph, inbreeding may not be for you. Or maybe the lessened risk of inbreeding wild-type animals should be a consideration. Either way, you'll have to decide for yourself whether the little bit of risk involved is too much or not.
You didn't post a dumb question, at all, Dodge. I applaud you for doing some inquiry before rushing headlong into something that you don't fully understand. I'm sure, with a little common sense, your project should go very well. If you
do get some crote morphs, you just have to be sure and post lots of photos!
" a squat, scaly worm with, 'don't touch,' on one end and, 'that's why,' on the other."
-Thomas Palmer