Experience doesn't help if you blow a tire which wasn't rated for the load. Or a c clip comes off the axle because the housing flexed to much. Or you brake fluid boils due to over working the brakes. Or hundreds of other potential mechanical failure points at risk when you over load.
Yes experience helps you there...
I stop every 50 miles and check my load ,tires ,bearings, ect.
I can feel when there is something wrong because of all the seat time i have,"experience"
I routinely have to tow heavy oversize loads,with the blessing of the local police department because i am the only tow truck in a 100 mile radius.
I rarely drive using brakes,they are for emergency's.My fuel truck is still on the same set of brakes as when i bought it. When i learned to drive my dad built me a dune buggy,i helped a bit. It never had brakes.The first job i had running a loader in a gold mine moving tailings,it never had brakes.
None of that was safe,but it was all doable.It made you think 2 or 3 steps ahead all the time.Something i still do today as i am driving a legal load or a overweight load,always thinking worst case senerio and how to avoid it.
I got a call the other night from a friend that started driving truck as a tandem team with her husband.Last summer we did a few trips with her driving for experiance.All light loads 3 empty 20' containers.One of the things i told her was driving truck is long stretches of boredom interrupted by moments of sheer terror.
She was listening and paying attention to everything we were telling her . She called after her first moment of sheer terror to thank me for teaching her all i did,She had just manged to avoid a major accedent because of the important things i had told her to watch for when driving,made me feel great that i helped her when she was on the other side of the country.