I would suggest you figure out what an LEO/CVEO will test you on if pulled over, at some kind off scale etc.
You will find out, them real cops don't care about your manufactures warranty/weight ratings.
Example, your gcw is the sum of the TV axles, trailer Axel's per federal bridge laws, which usually is higher than manufactures ratings for light duty trucks and trailers that we on this forum drive tow etc.
If you are pulled over. One brake test is "is you trailers battery at 11.6V or higher. If yes, your good. If not, you have a failed brake system. Get new battery, or you will sit there until the trailer battery(s) are charged.
From a stop, enguage manual brake lever, or and or leo will pull e cable from the trailer, put TV in first, with trailer brakes activated, trailer should hold TV. If not, were all the trailer tires locked up? Or some locked, another freewheeling? If all locked up, you have enough torques, low treating etc, no big.
If the trailer moves, a wheel or more moves, you have a ticket for a failed brake system. You might get away with adjusting the brakes, OR you get to tear apart and fix trailer brakes at the pull over site, or get a flatbed tow to a shop to fix trailer
Another field test, you going 20mph, hit manual brake lever, trailer needs to slow truck down or ttoo a stop. Another is all brakes working, you stopping with in XX feet from 10-20 mph.
No test is done to my knowledge, that truck must stop trailer, BUT as noted, trailer may have to stop, hold or equal, the truck. My take, trailer brakes must be stronger than truck.
My 02 from classes out on by a WSP CVE Officer. Commercial or personal use towing here in Washington, require and follow the same rules, laws and field tests.
Marty
