Sooo, were there gwangi-recasts from the original mold for the animation puppet? Are the two two-digit castings above with different color schemes from the same mold?
Did Hayward or someone else shave off a digit on each 'hand' to then re-paint and photograph?
If so, I could see where Ray and Schneer might have been perturbed.
If that's a re-sculpt and simply represented Hayward's style with therapods, I could see some wiggle room there.