FWIW.... That is 'for real' useful engineering, that has been going on for over 60 years, at least. Weber had a lot of different emulsion tube patterns for their performance carbs by the 60's... the DCOE sidedrafts that I messed with in the early 80's had at least 10 different emulsion tube patterns to choose from. Changing them makes a big difference in how the carb mixes the mains AFR up through the RPM range. See here and the old emulsion tube page that shows 14 different ones:
