Guys this is why you work on your car trailer

That was a game changer for me too John…. Dumped the E rated tires for some Greenball Towmaster G rated tires. Only caviet is that I’m quite sure my wheels are not rated for them. Usually leave the house with them at 90psi. I wouldn’t buy a trailer that didn’t have 16” wheels. I also take full advantage of their 75mph rating as we have long open stretches on the way to racetracks out here.
By the way in my “at track” research shows that outer rib wear is perfectly normal. Nice, smooth, and uniform.

Mine have worn 3/32 since 2020. Two trips to SoDak from AZ and quite a few 600 mile runs to Famoso and back.