I am with you on this I have had two spider balls one male with a decent wobble who would strike a miss at times and do a nice shake before the strike an obvious wobbler but a great snake other wise. The second is a female who if you don't pay attention to someone would say she has no wobble. I have seen her wobble though it's ever so slight. It's only right before she actually strikes at her rat/mouse, where she slightly tilts her head very slight to the right. She strikes perfectly though and I would have never noticed if I didn't feed her outside of her cage everytime. Just from what I gather in my short time is ever spider has it just some way less noticable than others. Why someone who throw one in the freezer is beyond me spiders are usually good eaters and if they have trouble striking live prey froozen thawed can be offered. Shoot just give them to someone willing to work with them even.