Help with 5th wheel weight-figuring issues !!

Figuring weight issues has got to be the most befuddling and confusing issue I have ever come across, and I am a supposedly well educated person! Fortunately, I found a smartphone app that takes all the confusion and guesswork out of it. The app is called "fifth wheel st." Just plug in the weight ratings of your fifth wheel. Then go to a CAT scale, get your weights, punch in the numbers and the app does everything else! It is a great app! Fifth Wheel St. also has a website calculator too, but for me the app is the way to go. Hope this is helpful.