very true, as I never seen it in my first spider male and I had him from hatchling until he was over 1700 grams. I know the breeder who has him now and still no signs of a wobble. but many of his offsprings had it. the spider has one of the coolest patterns. don't let the wobble keep you from getting one. you will get use to it. I heard that some wobbles as a very young snake and gets less with age and some don't show it until they're at an adult size.