Very stupid question, but whats a good way to mix large amounts of GW paints? I have a color scheme that's going to require a lot of 1/1 Contrast medium/Black Templar mix, and I don't want to spend hours mixing up brushfuls on my palette. So I want to make up a jar of the mix, but GW paints come in those weird little flip top pots. If they came in dropper bottles I could just to equal numbers of drops, but I'm not sure what the best way to get equal amounts of paint from GW pots is.