Proof on the Spider gene. OWAL take a look

[Peoples]

wow I didn't know your numbers were so extensive, so if im reading it correctly, every single one of the 153 spider offspring from the spider x spider pairing was bred to see if they were homozygous? Also I saw a thread that claimed to produce an all white snake that died after hatching from a spider x spider pairing, you never saw anything like this?

the "normal" making spiders is quite interesting also, few explanations that come to mind right away. (can we get a picture of her for the heck of it?)
simple one would be she is a spider that pattern resembles normalish quailties (im sure you thought of it already),
she could be a paradox, having spider reproductive organs,
she is a spider, but also has a recessive trait that dominants over it, making her look normal
epigenetics is at play and the expression on the spider gene is turned down, or even off.

Sounds like he has a Chimera.... Scenario, 2 embryo in an egg developing into one.... 1 normal / 1 Spider dna merging to produce a normal looking snake which will produce spider offspring...