Joe,
You just pull onto the CAT scales so the RV is on one pad and the front and rear truck axles are on their own pads. The Attendant will ask if you want a re weigh. So at that point he will log your weights. If wanting a re weigh to be accurate find a parking space with the other trucks and un hook and enter the scales again with just the truck. Then they will give you both weight tickets and you can easily see what your actual pin weight is and how much weight you are adding to the front axle when hitched.
My ticket is with the RV connected to the truck.
I am estimating my rear axle weighs 4K+ un hitched. So that means I have about 5,800# pin. I am running at least 25% pin.
__________________
|