Ok, so if the first Spider ball python was produced in 1999, after 12 years of breeding, outcrossing and breeding back, I would think if it were possible to breed out it would have been done by now. Even going with it taking three years for females to mature, the original breeders would be on their third generation of snakes, and they still have the wobble. It is also not only spider's who wobble, but any snake who carries a spider gene.
So if there is a way to separate the wobble, you'd certainly think blending it with two or three or in some cases four other genes would do the trick, but it doesn't. To me, a four or more gene combination animal that contains spider and still wobbles proves it cannot be bred out.
Also, if I am not mistaken, even newly imported Spiders wobble, so how does that fit in with your breed-it-out theory ?
Gale