No luck thus far, current thought is that its exasperated tramlining, but unknown cause. Its definitely worse at higher speeds, parking lot speeds its not noticeable but on the highway it is.

 

I found my right front caliper was dragging so replaced it with a new one. Steering effort felt better after that but car still wanders slightly. I'd check your wheels if they spin freely on both sides.

Looking at your alignment specs, I notice we both have 0 toe up front. I'm guessing that 0 toe makes the car more susceptible to following the road crown and small bumps that would steer it right.

Some toe in might help and I may try that on mine.

 

After you tried switching the front tires, do the same at the rear and check tire pressure there as well.
Larry