I've never had a tire blow out, the worst I had was a good sidewall bulge assuming from a pothole. I run the cheap stock 10 plys on my triple 7k trailer. They are way cheaper to replace then the 16 ply, I can buy a new tire already on a rim for under $200. Tire shop said many times when guys step up to the 16 ply they start having bent rims instead of tire failures. 17.5s on my 25 ton tag, i've had the tag for over 4 years and never had a tire issue whatsoever, I only replaced 6/12 tires when I bought it and the others didn't look new when I got it. Run sailun's, way cheaper then name brand and have been great.