If you mean a digital dumpster, I have no idea, only use manual powder handling tools. I have an old Redding Mod. 3 Master measure because only it came with a micrometer head the others charged a LOT more for. I have used the Hornady and RCBS measures and see no effective difference between them and my Redding. There can't be, they are the same design with only trivial dimensional differences between them .
Lyman's Mod. 55 is perhaps the 'best' (most flexible) manual measure in that it uses three sliding bars to control the volume of the drop, large to small, all of the others require a costly second chamber to deal with greatly different charges. Of course the Lyman requires the user have some comprehension of what he's doing with the adjustments and then be willing to experiment to find the best combination of bar positions for different volumes of different powders; not a lot of people fit that criteria.
