...@aldenf: From what I saw in some of the linked posts re: the Erlk, it seems like you can't let it sit for long periods without it leaking out of the air hole. Is that true?
For the last 2 1/2 years, I averaged over 70 hrs/week working. Dripping was out of the question and my RTAs tended to leak often, particularly if they weren't standing upright. I tried numerous builds in my EHPro KFL+ v2 but could never find a build that
both vaped well
and was leak resistant. That's why I found ways of getting a quality vape out of my ProTank2 w/airflow control through rebuilding the heads.
Then came the Erlkonigin. Cloud Hunter's wicking, that I linked to previously, has proved practically leak-proof and an amazing vape. From a completely empty tank, you might get a bit of initial gurgling/leaking that quickly goes away. If I close the AFC ring before filling, the most I've gotten is some slight gurgling that quickly subsides. If I refill before emptying the tank, rarely do I get a bit of gurgling. Thoroughly priming a new or completely dry wick helps prevent gurgling/leaking after filling.
The trick is cutting the wick so the shoulders make contact with the chimney. The wisp of wick that travels down the liquid channels transports the e-liquid like crazy with both organic Japanese cotton and Rayon. The wet shoulders, against the chimney, act as a seal against the e-liquid. I mistakenly left my Erlk lying on the passenger seat of my black vehicle, in direct sunlight, for a couple of hours. My punishment for such stupid behavior? The slightest bit of gurgling that quickly went away.
The Erlkonigin is shorter than my KFL+, holds 6ml of e-liquid (I've filled it once), provides incredible flavor, has as much airflow as a LEMO (after opening the center pin a bit with a round needle file), can throw gobs of vapor and is
highly leak resistant. Do I like my Erlkonigins? You betcha!
YMMV. If I remember correctly, KTMRider hasn't had as good of a time with his Erlk clones. Maybe he'll chime in and share his experiences...
If you don't need the 6ml capacity, I would recommend checking out the Erlkonigin Nano you posted earlier. It's getting great reviews but I haven't seen it Stateside yet. It's 10mm shorter with a 3ml capacity and seems the perfect fit on the smaller iStick, Cloupor Mini & VS DNA30 devices. Remember the Erlkonigins are only 20.5mm in diameter! For less than $15, it seems a cheap experiment. My PT2 w/AFC was over $20. If you don't like it, you could sell it for at least $10.
Good luck!