Carlisle Trail USA's is a old tech bias ply tire and has one of the longest complaints record on NHTSA tire complaint website. Their better suited for a lawn service trailer that used around town at sub highway speeds.
Carlisle has a Radial Trail HD that is their newest and best tire for RV trailers that see lots of open road use at normal speeds.
You sure don't need a load E tire at 2850 = 11450 lbs capacity on that size trailer. Trailers unlike our trucks can be over tired for best long term reliability.
The D tire at 2540 = 10160 lb capacity which is way above your trailers 4000-4200 lb axle load requirements. All your trailer needs is a tire with 10-15 percent reserve capacity above axle ratings and can be ran at max pressures as Carlisle warranty specifies.