Unloading center beam cars

[faraway]

A centerbeam must be unloaded from both sides. There's warning lettering, and a diagram for those less literate, explaining how the car will tip over if you don't unload from both sides!

That is also my understanding, sorry did not mention it. I mend if it is prototypical to unload only 1,2 or 3 packs from one side at a small dealership.
However, I axed!
It is technical a problem to keep the car in balance but it does not fit into todays economy. If a dealer needs less than a center beam carload he will get it on a truck.