We've been through this before..... Pinstripe has evidence of being truly dominant and there is zero evidence to suggest a lethal homozygous form, yet you keep repeating it is lethal. Here we have claims of a homozygous calico...might be proven by now, hence the thread revival.
Well the spider it may be the case, in the few people who have posted actual numbers, there was a slug or two in the clutch. Also somewhat recently someone posted a picture of a dead white snake that they said came from a spider x spider pairing. I just find it odd this is the first time someone publicly posted one. But then again, I've never seen someone attempt to prove out a homozygous spider. Nothings set in stone but recent evidence isn't looking good for the homozygous spider.