Pedders have been advertising a weighing service for vehicle & trailer for $75, I was going to book in once I have added tyre racks etc. to the car trailer.

Can you reduce the towball weight below 250kg while keeping the same down force by using weight distribution hitch?

GVM is gross vehicle mass, mass is the amount of matter, not the force down on the towball (which should be measured in pounds, newtons or kiloponds), so I can't see why it would be added twice.

Graham