Interesting, but since the op does not seem to give any detail and there is nothing obvious in the video to give anything away, and he has not supplied any more info I am a little sceptical. To target an output he has to input something somewhere. We cannot see the back of the scales to see if there is any connection to anything. Personally, I think it is nonsense!
That video was posted on November 8th 2025 yet on Janury 25th 2026 he posts on his page, ‘Currently working on flow profiling on my Elizbeth but running into an issue. Can someone measure what their max flow rate is on their Elizbeth and comment what it is? Measure with a scale and see how much water comes out in 10s with no portafilter’
https://www.facebook.com/groups/202659140139834/user/100000839310596/