Here's my experience with it:
https://learntorv.com/escapees-smart...wheel-weights/
First, the best part was getting to kick my mother-in-law out of the truck while it was done!
But seriously, it showed that my fifth wheel had 1 tire overloaded by a couple hundred pounds, 2 tires that were maxed out, and 1 tire that was under-weight by a couple hundred pounds. There was a huge disparity between the heaviest load and the lightest load.
If I recall, it's 100% due to camper design- dual rear slides and fridge on one side. That tire was the heaviest. The opposite side towards the front was the lightest.
I found I was overloading and maxing out the rubber. It gave me the data I needed to justify a wheel + tire upgrade.