I installed new Carlise Radials on my trailer in spring 2018 and had them balanced.
I live near Dayton, Ohio, and since the install, I have been to Norris Lake, TN. 3 times, Cumberland Lake, KY 2 times, Kentucky Lake, 1 time, Cave Run Lake in Kentucky 2 times, Lake Ozark, MO. this summer, and numerous trips (every weekend to our local lake which is an 80 mile round trip. Total is Close to 5500 - 6000 miles.
Not a single issue. Key is keeping 50 PSI in tires, having the trailer mostly level when pulling to distribute the load on as evenly as possible on both axles while maintaining a good tongue weight.
Very satisfied and a ton of tread left. I normally run at 70-73 MPH. Very Smooth.
But, I will probably replace in 2 more years to be on the safe side. See so many trailers along the road with blow out tires, wheel bearing failures, etc. knowing it just ruined ther day or part of their vacation, especilly of they do not have a spare or the equpment to change the tire or bearing.