Interesting. I've always heard the wobble described as a neurological issue, but if it is has more to do with the inner ear, that may not be true. Though, I suppose that in pearls/super spiders it could still be considered neurological because of the deformed spine.

From what I've seen of the wobble so far, I would definitely agree that it causes difficulty balancing. It doesn't seem to affect them much when their heads are touching the ground. As long as they can feel something underneath them they can orient themselves. But when they're up in the air they would have to rely on their ears, since there's nothing to touch. So it makes a lot of sense to me that the wobble would have something to do with the inner ear.