part of a write up i did on the spider gene. full thing is here

I don't believe the wobble is leaving there is too much evidence it is linked directly to the gene, but I think it can be reduced. I see stress levels might play a factor in the amount of wobble the Spider's show. As stated before, every snake is different, but I have personally seen how changing homes can bring a minimal wobble, to horrible wobble, to minimal wobble again. Many people report only seeing signs of it while only feeding, or only while being handled. I feel this strengthens the idea that stress or excitement can elevate the condition.

I know this may be a touchy subject for some Spider owners whose snakes exhibit a particularly bad wobble. They may feel like i'm saying their not taking care of their snake correctly. I will say if your snake is eating and living a healthy life, you are doing a great job, there may be Spider that will always have the bad wobble, but also it may need extra accommodations beyond the normal to feel less stressed (ex. extra hide, more foliage, less direct light, ect). Yes, I am suggesting the 2 hide, water bowl, cookie cutter setup may not be right for every ball python in general and the Spider just shows it. I have talked this over with many people and online and I think it all comes to the same conclusion that it's near impossible to test this theory. Some people have stories that strengthen the theory and some have stories that 100% conflict with it. So take it as you wish. If you have any input on this feel free to email me.
I have 2 spider balls and a jag carpet (the jags look like they have the same issue) and really it's nothing to worry about. I would never even think of getting rid of them based on the wobble, Heck one of my spiders has never shown it one bit the entire time we had her. eating, breeding, laying eggs, flip her over, dog sniffing her.... never shows it. The others do though.