I'll try to do some digging and see if I can find where I read it. Depending on his results, it may be good enough proof for me. The only issue is, I didn't pay much attention to what all the offspring were other than not black pastel enchi. If all his pairings with his black pastel enchi did produce only one or the other in each pairing, that would pretty much prove it imo. I'll follow up if I can find it.