While some people might not strategically load their trailer with a certain weight distribution in mind, some experts say that a 60/40 front-rear split can hugely improve safety.
You can see in the demonstration from the first video how that trailer responds to what would be steering input, with a 60/40 split first, and then a 40/60 rear-focused split.
Stability is maintained much more easily with the suggested 60/40 split, where the front of the trailer is heavier than the rear, whereas otherwise the driver would have a more difficult time regaining control of his vehicle.
According to U-Haul, loading a trailer heavier in the front “reduces the chance of sway. If sway is encountered, release the accelerator pedal, slow down and move to a safe location to redistribute the load.
“Having too much weight in the back of your tow load is a recipe for danger,” added U-Haul assistant director for engineering services, Marco Garcia.
In the second video you’ll see why it’s never a good idea to distribute all the weight at the back of the trailer, as it greatly increases the chances of sway.