...IF i have to vape thicker juices, i put it on the 3ml phoenix because its easier to squeeze the tube with my fingers every now&then (works almost like a bottom feed mod). this way you "force" juice into the coils...works slick. (it does work on the smaller phoenix too but the tube is smaller, hence little tougher to squeeze....
I tried doing that on the smaller Phoenix. I got absolutely fascinated with watching the little bubbles drift out of the wick hole... Like little pearls on a string... Soooo pretty...
Before I knew it, my juice was running out the bottom.