- Edited
Yeah it was an option but coming from a very very old first gen Sage Barista, getting another Sage did not excite me at all. I have just ordered a more accurate scale so that I can do it your way.
Maybe a Sage/Breville Dual boiler would have been a better choice for you, as it has volumetric capabilities. Saying that, I have no idea how accurate that volumetric flow controller is.