[notanlines]

Cliff, I heartily disagree with your statement " All Chinese tires are created equal. They blow in two to three years." Few things could be further from the truth. You seem to have have jumped on the 'Built in America' bandwagon throwing support to Goodyear, maker of the Marathon tire, arguably one of the worst offenders on the RV blowout scene.
RV'ers in the know, from board to board, will put Sailun at the very top of the list when dependability and costs are all considered. I might add that Maxxis and Carlisle are also towards the top.
Your Endurance tires have been around about two years and so far have received favorable reviews. And nobody pushes Buy American more than me. But keep in mind that Goodyear hasn't a perfect record.