I have four race car set up digital scales that display all the necessary percentages in the controller. I'm in Naples Fl and will be glad to loan them to local builders. I have not tried it yet, but I'm confident that plugging all of the scales into the controller while one of the front wheel scales is reading zero will provide the controller with enough information to function as it should.
You will get front to rear percentages, left main to right main percentages, weight on each of the wheels individually as well as how much "wedge" you have in your airplane
I'm in far SW Florida, not much south of us besides swamp and Burmese Pythons.