I am moving this question from an other area and asking it in a different way for hopefully more input.

I have had all 8 tires re-balanced and one re-placed due to out of round. I still have a hop,bobble,bounce at 58-62mph. I have had a slight problem since traveling South, but thought it to be a slightly out of balanced tire, something I could live with until I returned to Eugene.
After being parked 3 weeks the problem has intensified to a point something is required to solve the problem NOW.

All ideas welcome, I want to solve the problem before traveling farther as I don't know if damage is being done and I'm in an area [Phoenix] where I do have a few resources.

OBTW , I feel it in the seat of my pants, not the steering wheel.

Thanks