I have learned from some semi extensive research that ALL spiders wobble its a matter of how noticable it is. Someone not knowing what to look for and having a spider or spider morph may think it does not have the wobble because it is such a subtle wobble. Also some spiders hatched appear to have no wobble yet develop it later in life and vice versa. Some spiders have it from birth and sometimes it decreases with age and some have it, it goes away and then comes back. I have also learned that the wobble can not be bred out. I guess it depends on how you've researched and what you have come to believe. Here's a link that I feel is the "majority vote" answer to the spider wobble theory.

http://www.arbreptiles.com/lastword/spider_wobble.shtml