I've been using an eleaf Melo 5 tank, 0.15 coils, 06mg juice, and I have a Vaporesso Xros pod device for the salts, but I've been using the same juice in it, but the coils don't last very long because it's such a high vg juice. I contacted Barista Brew and they told me the salts are 50/50, which is what I was hoping for.