I've been towing trailers of one kind or another for 42 years and have never ever experienced a blow out. I've had two flats. One on a small utility trailer that got a nail in it. The other was last summer on my 5ver driving east on I40 just east of the Arizona/New Mexico state line. This was caused by a bad valve stem. Fortunately my TPMS warned me of the leak. At one time or another I've put on the cheapest ST tires I could find because the pocket book just wouldn't stand anything else, I've used U.S. made Marathons and now Maxxis. The key, regardless of tire, is proper tire pressure and loading. You mess up either one of those and you are doomed no matter what brand you buy.