Well,...that's kind of a "two-part" answer. Actually, many of the morphs that are in the market today are VERY inbred, that doesn't mean that it has to be necessarily bad. In order for the snake to be visual for a specific trait(homozygous),it has to have the genes from others with the same trait, therefore that gene is always being perpetuated from generation to generation. A good example of this is the fact that ALL "snow" corns are in fact ALL related. Any morph of something is related to another one that looks the same, or it wouldn't look that way in the first place.......some are MUCH more inbred depending on how much "new-blood" is introduced(making hets). The point is All of any given morph are related, just some much more distantly than others..................As for the "blood-red" morph, the reason for why these snakes are smaller, and can typically be "problem feeders" is that IT ALSO comes along with the gene. Every time you you breed a pair of snakes together, you get a combination of ALL the genetics from the male, and ALL the genetics from the female, weather it be preferable, or not. This is what the "blood-red" corn also comes with, a small size,preferring lizards if they eat at all!. It just comes with the package.
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Better to be silent and thought a fool, than to open mouth and remove any doubt!