There’s actually several more genes in the spider complex that can all have varying degrees of wobble as well. Spider itself, while causing a flaw iirc in the inner ear area? @t_h_wyman probably knows the specifics of it (and other genes as well) is not necessarily too bad. I feel like the incidences of spiders with severe wobble is less now than before or even just 6 years ago… which also makes the original outcry to ban them feel like just a way to attack ball python keepers in general.
Hidden Gene Woma. Champagne. Blackhead. Spotnose. These are other genes that can cause wobble that most people don’t even bat an eye at because they’re not spider. But especially when crossed with spider the issues can be even worse.
Caramel Albinos can lead to kinks.
Desert (not desert ghost) can have fertility issues and leads to many females becoming eggbound.
BELs can have issues with small eyes or bug eyes depending on the mix of genes…
It’s important to know what you’ld be working with as a breeder to understand what complications may arise. There’s a handy post on the forum for exactly that purpose. HERE
There are also a number of genes that honestly don’t affect them much at all… pastel is one of them. Yes it affects color but overall? Nothing else. It’s still just boils down to knowing the genes you’re working with.
I see it much like the different colors in pet hamsters, mice, cats or birds. There are so many variations there that don’t exist in the wild but are such a common occurance to us that we don’t blink an eye at them anymore. It doesn’t really affect them in a negative way 80% of the time. But the way that they are being kept and bred can. And that’s where you get into things like breeding munchkin cats or english bulldogs. I honestly can’t see spider gene being anywhere near as terrible as an english bulldog myself. Especially after seeing multiple bulldogs having seizures or heart problems and bone issues from how they were bred.
Opinions can vary a lot too from place to place. So it’s good to keep an open mind and ask questions like these though!