I installed my first set of Centramatics on a motorhome about 18 years ago. The tires on that motorhome were bias truck tires. They would develop flat spots and would shake like crazy for the first few miles on a trip. Someone told me about Centramatics.
I don't usually ride in my Airstream trailer, but I did drive that motorhome. it ran smooth as silk after the Centramatics were installed.
A new set of tires and Centramatics were the first thing I installed on my Airstream.