@MaxVapor, so Pure Gold is all you use? I can only report what I get, I'm trying out all this gear with glycerin right now to figure it out. With 95% VG (with 5% flavorings, no nic) on the first generic BUD cart I tried, it can't feed right away. This type has the blue plugs and is generic Chinese BUD, like what the O-Pen-Vapes folks use, not especially purchased from GotVapes. My glycerin just sits there, it's viscous as hell and it barely wicks on the little fibers sticking up out of the metal tube. Certainly not enough to prevent dry burning.
Same problem with the O-Pen-Vapes carts. Once it warms up and I let pressure equalize by letting in some air, drawing on the mouthpiece creates a relative vacuum in the bottom portion that pulls some liquid down the tube, and then it works fine. It's not even so much that it "wicks", in the sense of passively diffusing.
It's suction that feeds all these bottom-coil units. I suspect that's why they removed the protruding wicks on the new PT3 heads, they're not doing much.
Same on the Kanger mini aero. If I close off the air flow ring, sucking on the tip pulls liquid from the outer glass tank through the wick holes to the coils. Bubbles appear in the liquid as air from the bottom replaces some liquid. With the airflow ring wide open, there is little suction applied to the tank to pull in fresh liquid, the coil cooks off what's there, and a dry burned hit becomes a possibility.
The Kanger protank 2 mini has 3 fixed little holes on the base for a medium airflow that balances well. To pull more liquid to the coil, I plug the holes around the base with my finger and suck on the tip. It immediately pulls in liquid and halts any harsh burning taste.
@MaxVapor, I'm very curious if the reason your BUD works differently is because of something specific to Pure Gold, or some detail (what?) about the Gotvapes carto. For instance they could have requested an unnoticeable pinhole in the top. With a thick liquid it wouldn't leak through it, but the air intake would let liquid feed down to the coil. In fact, one could make it adjustable, though it's very different from a Kanger.
@Haywood, do you keep your rig vertical or just let it flop? On a battery or separate? If separate it would be easy to use those little silicone bottom BUD plugs on the 510 connector ...
When you say a little leakage, you mean like a trace or a drop? What do you do about it? is PureGold very sticky? As sticky as Supermelt etc?
If it's leaking down from the coil wick above the air inlet, what about trying this: rather than end the session with a lot of liquid still on the coils, burn off most liquid by opening airflow wide from the bottom (so there's minimum suction) and vaping off the remainder before setting it aside. Then start the next session with a "priming", by sucking liquid in, i.e. plugging air intakes on the base with fingers, or closing an airflow ring if available, and sucking on the mouthpiece with power off.
On the
EJMIx vs Propylene Glycol front, I ended up adding a drop of EJMIx to my turbid Propylene Glycol only sample, and it cleared right up. I'm convinced now that
EJMix stands a better chance than straight Propylene Glycol of creating a stable non-separating liquid at concentrations around 1/3 EJM to 2/3 wax. It's possible that with more solvent the difference becomes insignificant, but at $30 for 50 ml EJMix is not prohibitive anyway. Some people mention Glycerin (VG) in connection with "thinned oils", but that's an error; VG is water-soluble and doesn't tolerate high temps.
