Ok, here is my experience.

2009 Myco. Came with trailer tires. Hauled from Detroit to Ft Myers Beach last February. Had a blowout on the way down, tore up the rear step and the fender on the trailer. Put the spare on.

Called Myco and asked what they now use, was told Firestone Transforce HT. Got one and put on the trailer as a spare.

Return trip home lost another one, luckily no damage. Stopped and bought another trailer tire (all they had and I was stuck). Then lost a 3rd, again no damage. At this point I wasn't even to Atlanta yet.

My wife called a Firestone shop outside Atlanta and they had the remaining tires to make a set. I now have 6 Firestone Transforce HTs and one Goodyear trailer tire on the spare.

What a difference pulling also!

Had the step re welded and the fender fixed when I got home. Never again will I have trailer tires!

That's my story.

Edit: trailer was always stored in climate control building....and still is.

i will not run my boat trailer tires more then 4 seasons which is maybe 4000 miles a year. a boat trailer is always under load then if a triple axle its always dragging the tires in every turn, then to top it off there is have heat, under those 3 conditions any tire will fail after to many years of service, some tires less years then others, then I'll pull them and i will run them on other trailers. Fortunately I have never had a blow out on the boat trailer in almost 20 years of towing a boat. I have always used FirestoneTransforce, I use to use AT's then run them on a truck that had the same tire size but now the newer trucks are not running 16" so i recently swicted to HT's.

I don't think my trailer would ride too well on 35x12.5x20 Mud Terrains!

Firestone Transforce is an excellent choice, I have them on my superduty that does nothing but towing. They would be my choice on my next trailer.

i went with a cheap radial trailer tire that the local tire shop recomended. ill never put another bias ply tire on a trailer again. the trailer tracks so much better.