The attempt at placing Rhac traits into simplistic categories (co-dom, simple recessive, etc.), doesn’t indicate the requisite knowledge needed to accurately investigate this subject. Rhac traits clearly have a complex inheritability scheme that is probably incompletely understood by even the most experienced breeders (not sure what your experience level is relative to them). But you’re not going to be able to map them like you can with Ball Python morphs. It would take a tremendous number of breeding cycles, good solid record keeping, and a fixed wy of evaluating offspring to definitively “weight” the inheritability of a given trait. Even then only the most expressive traits would reveal themselves readily (as line breeding for “red coloration” has shown).

As I wrote, truly experienced breeders probably have a “six sense” about how a particular crested will turn out as an adult by what indicators they see as a juvenile. They probably have a good idea what characteristics to pair up. Certainly discussing those indicators and observations would be helpful for everyone in the creation of more desirable morphs. Of course if I were their shoes, I don’t think I’d give up that information to the general public (it's not a husbandry issue).

Also - there’s actual science and then there is pseudo-scientific terms used in the pet trade for ease of marketing and broad understanding. Both have their use, but are often not interchangeable – a good thing to remember.
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-Randy May
www.neoscales.com
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