You see what a placement costs while you are still choosing it
Freight is put where it will really sit: how far back from the nose, how far off centre, how high its weight sits. Drag it and the axle readings move with it.
Why this is different
The usual planning tool is a spreadsheet of weights with no geometry in it at all. It can tell you the load is 46,000 lb. It cannot tell you that the first 12,000 lb of it is in the wrong place.
The load is 1,100 lb over on the drives. Dragging two 2,000 lb pallets from the nose to behind the tandems takes roughly 1,300 lb off the drive axles and puts it on the trailer group, which has room to take it. The planner watches the drives go from red to green in the same second, without opening a calculator.

