Well apparently I have to post new message here first, so I thought I'd give it a go. Does anyone have any advice on how to properly measure how many drops are in a ml for your respective liquids? I have lots of liquids that come in different bottles, and the default of '20 drops per ml' never seems to give me the right amount of liquid. Unfortunately I don't have any easy way that I can think of to figure out how many drops are in a ml besides emptying out my containers and replacing with water and dropping them, but VG/PG have a different viscosity than water, so I'm not sure that would even be a decent test...