The Pilot station by me charges $10.00 for the first weigh and $2.00 for the second weigh with in 24 hours.
I weigh the TV, then I weigh the TV and TT. I center the TV between the steering axle scale and the drive axles scale and of course the two TT axles are on the trailer axle scale.
Since both my TV and TT vary by several hundred pounds between trips, depending on how much stuff I cannot live without; I really do not care about the exact weight of each. I want to know what the axle loads are as I go down the road.
From the scale information, I look at the front and rear axel weighs of the TV only. Then I connect the WD hitch so the TT is sitting level and weigh the front and rear TV axle and the combined TT axels.
From these measurements I know,
* The weight loading of the front and rear TV axles with no TT.
* The weight load of each the TV axles and the TT axles with the hitch adjusted for a level TV and TT combination.
* If I am within my TV's max cargo weight capacity and each axles allowable load.
* If I am within the combined TT axle ratings.
One thing I do not know is the repeatability of the scales or their accracy. I do try to center the TV so it is on the front and rear axle scale the same each time.