The two differences I see with the het red axanthic pastel is a) her yellow spots are not very yellow, much more muted, closer to monochromatic. b) those seem to have a the unbroken back where she has quite a bit of spotting across the back.
Some of the black pewter pics do look like the closest I've seen, like this one:
http://www.worldofballpythons.com/files/morphs/black-pewter/004.jpg
Though she does have a reddish tone.
Regarding no "het red" in genes, I was thinking the same thing based on the morph calculator: http://www.worldofballpythons.com/wi...4&female=40,32
The breeder is Klayton Mai, a part-time guy in Dallas: https://www.facebook.com/cagedconstrictors
Should I follow-up with him and ask where the het-red came from, and maybe what the parents of the supposed Gargoyle were?
Guys thanks for helping figuring this out.