from what i understand all spider x spider pairings have turned out lethal, so i believe that is what he is saying when he was tlaking about the spider gene but i could be wrong. as for the pin x pin i believe it has a "super" form it just takes to much time/effort to prove it out that it isnt worth it in the eyes of most breeders. like a preiveous post stated the time it would take to prove it out for sure you could be well on your way into 4 gene morphs resseive projects ect.. so although having a "super" pin would be great in a collection as most of us would love to have one i doubt many of us would take the time to prove one out. i know i would'nt i would just roll the dice on "normal" pins like every one else. i dont understand why you guys are taking it so personally if he wants to take the time to prove out a pin then let him who knows he could come back 3 years from now and throw it all back in your face
Unfortunatley our understanding of ball python genetics is rudimentary, but most people swear by it and think it is concrete. There can be multiple alleles on a locus. Try to convince anyone that. A locus can be Epistatic. There are so many variables that can happen.