the degree of the spider's wooble has alot of examples of it being completly random, like how much white will your pied have? doesn't matter if you breed a high white pied to a high white pied, you can still get low/no white babies. spider's wooble seems to be the same way, a low wooble spider can throw high wooble babies, sometime you can have siblings one has a bad wooble the other doesn't. all evidence seems to point toward it being random. The spider I have doesn't wooble at all, but it doesn't mean im expecting the babies not to have woobles.
When someone comes forth with any proof of inbreeding having any negative effect besides something being line bred for 3+ generations, mayb i will give it a thought. until then it just rumors to me.
see problem is people like to make alot of claims and some stick, like homozygous spider being a lethal gene. and im even guilty of spread that rumor at one point because everyone said it and i thought it was just fact. But try researching it and there not one shred of evidence of it being lethal. only thing we know is there is not a known homozygous spider. it could be a complicated gene and there nothing deadly about it. mayb it is lethal. we don't know tho.
lemme ask you, why do you not believe in inbreeding? just because so many people claim its bad right? it must be true, then they say people only do it to make money. makes sense we see greedy people everywhere in our everyday lives, so again must be true. but again try researching it. lemme know what you find.