99% of cases outside of the spider gene complex that have a wobble are due to past injuries, wrong incubation techniques, or prolonged exposure to harsh chemicals. But these cases are extremely rare outside of the spider gene complex. The reason that spider bp's get the "wobble" is due to inbreeding. The cause for the neurological wobble is due to a recessive gene. Since all recessive genes concentrate(get better when closer related) and the spider gene is recessive, then when the spider gene is concentrated so is the wobble. I hoped this helped.