I don't see any safety benefit, in fact I think having 4 powder measures - 1 for each powder - just adds complications and more opportunities to make a mistake. Please explain your rationale.
4 powder measures, 4 powders.... all measures would be labelled with their powder.... Only one powder and measure on the bench at a time.... measure labelled varget only gets dumped back into the varget bottle... powder in the varget bottle is only used to fill the varget measure....
It's nothing that the "one powder at a time" rule can't fix.... But does add the label check to the process.....





























And I sort my brass by head stamp too.





















