PROBLEM SOLVED!!
The tire situation was horrible on the way to Florida in January.
The first thing I did was go to Wingfoot here in Knoxville, Tennessee
and they replaced the two brand new front tires that had been shaved
without my knowledge by the initial tire dealer, and shaved beyond the waranty thickness of the tread.
We got in the MH and headed south with no change in the vibration
Next I stopped in Sarasota and had a set of Centramatic balancers put on the front wheels and headed down the road with no change. We spent the night in a rest area on I-75 and went back to the truck place where we bought them and had them removed. They had a 30 day money-back guarantee but the labor cost me $270.00 to R&R them and
have the tires spin-balanced on the coach.........$90.00 on, $90.00
off and $90.00 balance.
We sat in Bonita Springs, Florida for two months and during that time
I located a place in Ft. Myers that shaved tires. I made an appointment for the day we were leaving Florida to home and arrived at 11:00AM. There was one guy working on shaving while a helper held
the steering wheel as far left or right as needed. We went for lunch
and came back almost three hours later to pick up the coach. The tires were shaved and they checked the front-end alignment at my request. I told my wife that it was going to cost us plenty for two
guys and three hours, but if it's fixed so what.
I'm happy to say that the total bill was $75.00 and the coach ride
is now PERFECTLY smooth. It was a real pleasure to drive it home.
My plan now is to get a couple of new tires each year at Wingfoot here in Knoxville, then drive to Florida and while there have them shaved if they need it. In four years I'll have new tires all around.
Thanks to all who offered advise.