Have you tried one under each each foot, then swap then around and taking the average for each foot and then using the average of that as your weight
I worked at one place that had 2 clocks that were off by 10 minutes. The slow clock was the “get to work” clock, and the fast one was the “go home” clock.
“Never go to sea with two chronometers; take one or three.”
― Frederick P. Brooks Jr.
At the end there isn’t a valid method to check weight. So isn’t the whole point moot? Same as there isn’t a way to check are the training putting out right numbers.
More so why does it matter?
A cheater cheating at 100kg in D can win setting their weight at 50kg in B.
At the end if you had fun and a good workout, you did well.
Yeah I have the withings scale which at one point synced with Zwift, then that broke, but there was a hack where if you used Fitbit it would work, now neither of those work for me, so I gave up trying to sync my weight with Zwift, so I update weight when there’s a big change and otherwise it stays unchanged.