They dont have any rules because their 'contract' is about as real as the Joseph Smith Bible, meaning of course, that it's a physical object full of words incoherently strung together containing no value and whose actual observance is completely elective.

Well...ok, little insensitive.
Look all the skywest reserve rules are guidelines. Theyre not enforceable by the pilots (union) so its just wheedling and begging but apparently Skywest likes it.