Hi all,I have a Lee 1000 progressive with the auto disk powder measure. It comes with round disks that measure the powder but does it using values such as "0.42" I understand you have to get some sort of "VMD" sheet and do some math to figure out how many grains of powder is being dispensed. Can someone tell me if that is true and also any tips on what powder, etc you use? Thanks! Wanna kill these ads? We can help!