Toad Tiger Tires

Three years ago on my toad set up I had 4 new tiger paw tires installed and thought I was good to go. After 24 months, while in Wyoming I had a front tire develop a large bulge, caught it in time and replaced it and the other front tire with a pair of snow tires as they were the only available in the size. Last week while in New Orleans the two back tiger paw tires went severely out of round requiring emergency replacement. Moral of story is that when a premature failure occurs on one, the other three should become suspect