Anyone else going through trailer tires this summer?

I’ve blown my share of tires on toyhaulers and my 14 x 7 Haulmark. Goodyear used to make a Marathon that was made in the USA, and I had good luck with them on my boat trailer (7500+lbs with boat) until they started making them in China. Now I’m running their Endurance tires on my Haulmark and on my 22 foot travel trailer. No problems over the last several years on either one. I don’t tow over 65mph anymore. The Endurance series are a 65psi tire with reinforced side walls and UV protection. I cover them when the trailers are on my RV pad at my home in Lake Havasu City, AZ. As far as I know, the only consistently hotter place in the US is Death Valley. We took the travel trailer on a 4300 mile trip in June to the Pacific Northwest, and a 1,000 mile trip to Colorado in August. There were lots of bad roads and difficult conditions. I’ve heard the Greenballs are good, but I don’t know anyone running them.