TT Tire Recommendation

My trailer came with 10 ply Goodyears, and they lasted 16 years and still looked like new. Finally the tread came off one so I figured it was time for new tires. So my tire dealer had 10 ply tires but I asked if he had any thing heavier duty? He said he had some 14 ply tires used on equipment trailers for $20 per tire more. I said go for it. After 3 radical blow outs with in 5000 miles, and finding out they were made in china, I said enough is enough. I then went to 10 ply Michlin. I've never heard anything bad about Mishlin but we will see. Only had them 1 year, so far so good.