Inbreeding had nothing to do with the wobble. It is a Dom animal, no inbreeding was needed, there is no super, so while some Spider x Spider breedings might have been done, I doubt that many were done, and I am possitive it had nothing to do with the wobble. Does the original spider wobble? If so, and I am sure it does, inbreeding could have made it a bit worse, but would not have caused it. Again, I personally do not think inbreeding had anything to do with the wobble, or making it worse.
Dave