[Motor31]

The unloaded pin weight is meaningless as you don't tow the trailer unloaded. The only weight situation that really matters is the loaded condition as that is how you use the unit.

When weighing the rig make sure you have a scale that uses multiple weighing pads. Place the axles on a separate pad, steer or front axle, rear axle of truck and the trailer axles on another pad. Comparing the rear axle weight of the truck weighed by itself vs the loaded weight does give you the pin weight. Make sure the truck is weighed both times with full fuel, passengers and loaded as if you were going to be heading down the road.

Check to make sure that each axle is not overloaded either by axle capacity or tire capacity as well as the GVW and GCVW. The last consideration will need a weighing system like Stacy (Stripit) uses so he can tell the weight on each tire and also give you the side to side loading data. The weight on the trailer is not evenly distributed either front to rear or side by side. It is easy to have one side overloaded.