Sorry to tell you, but homozygous spider is still genetically possible and there is no proof in whether it is lethal or not. It isn't really proper to say "does not exist" when the evidence/research isn't there.
I never said that a homozygous spider wasnt possible. I said that it doesnt exist, and until someone PROVES otherwise that statement is correct.
What more evidence and research would you like? The spider has been around since 1999 and there has never been a PROVEN homozygous spider.

Is it lethal? Maybe, maybe not. There are not enough breedings out there to prove anything in this area. Just because high end breeders don't believe there to be doesn't mean that there isn't. They know better than to breed spider x spider because there is no point in breeding a dominant to the same dominant gene.
NERD says that it is not lethal. Until someone PROVES otherwise I believe them. Why would they have to prove that it isnt when there is no evidence to prove that there is a lethal homozygous form.
How many breeding have there been? How many is enough?

I can think of three dominate traits off the top off my head. Spider,Pinstripe,and Granite. None of which have proven to have a homozygous form . Yet alone a homozygous that is lethal.