I just went to the Zoom color plate to see what you're wanting. My monitor shows the chartreuse as being very slightly greener than what straight X2 chartreuse will give you. If you are doing a 4 ounce batch, I'd add maybe 5 drops of the X2, cook it until it has reached 350 and then I'd dip a toothpick maybe 1/8" into straight green, knocking off the excess on the inside of the bottle neck and stir this into the hot chartreuse. A green chartreuse would probably be better as the mixing agent....all you want to do is pull that strong chartreuse down a little with the green. It will take very little to do this. Once you get the color dialed, add .015 black flake. Add sparingly stirring after each addition.