I had the same kinds of experiences with my Formoza. I had started with 3oz of dynabeads and slowly increased from about 36 psi and went all the way up to 44psi. I still got the wobbles over 75-80mph. I would also get a weird oscillation while driving straight for a length of time. I was starting to get concerned. I eventually added 2 more oz for a total of 5oz of dynabeads and increased to 48psi and it is absolutely perfect right now. I have run it up to 85-90 and it feels nice and stable. BTW the max psi on the sidewall is 44 psi so I am 4 psi over max. And I have had absolutely no issues with the dynabeads clooging the valve stem. So if you have not balanced the tire, I would highly suggest using dynabeads...