How about a "one" hitter that you only have to load once a month?
Here's my first report of using a genuine
Kanger Mini ProTank 3 with liquified concentrates (in this case, undiluted Pure Gold, which is really thick stuff, easily as thick or thicker than honey). I had a hard time deciding if this post should be in a new thread, or in this thread, or in the "best clearo for pure gold" thread, and the reason I'm leaving it here is because I think it's really relevant to what we've been talking about the past few pages and it applies to any concentrate that is liquid enough to flow, not just Pure Gold. There's been much talk in this and other threads about how to mix your concentrates with, e.g., EJMix or Vegetable Glycerin or Propylene Glycol, etc. so I won't get into it in this message. Anyway, that's why I'm posting this here.
Before I put the first drop of Pure Gold into the mPT3, I wanted to test how well it did with both thin and thick liquids. I changed out the stock 1.5Ω dual coil atty with a genuine Kanger 2.0Ω dual coil PT3 atty, as I only had two of the 1.5Ω attys, but I had five of the 2.0Ω ones, and I wanted to save the 1.5Ω attys for when I loaded Pure Gold. So I loaded 100% Vegetable Glycerin into it, and carried it around for a few days, taking puffs every few hours when I remembered. (Barf; vaping pure VG sucks, even when you just take it into your mouth before exhaling). I went through two tanks of VG (~3ml) with no dry hits and no leaks. I wasn't expecting any leaks (the VG is really thick stuff), but I was happy to discover that the factory 2.0Ω dual coil atty in the mPT3 was able to wick the 100% VG well.
Then I emptied and cleaned out the mPT3, which is really, really easy to do, and filled it with 100% Propylene Glycol. This is really thin stuff, not quite as thin as water, but pretty thin. I carried it around for two days as well, puffing away, and it didn't leak at all (and of course, wicked just fine). For my final test, I loaded it with one of my favorite e-juices (a 70%PG/30%PG blend, pretty thin), and flew from the east coast to the west coast with in my pocket, used it (and refilled it) the whole time I was on the west coast, and flew with it back to the east coast three days later. Worked 100%, leaked 0%.
So I was sold.
I cleaned it out again, switched the factory 2.0Ω dual coil I had been using with a factory 1.5Ω dual coil, and filled it up with three ampules of Pure Gold (a gram and a half worth, which in this case is also a ml and a half). This was scary as dealing with reclaiming a ml and a half of Pure Gold if this didn't work was not something I was looking forward to. Even heated up to, say, 105°F, Pure Gold is a horrible sticky mess to deal with.
Fortunately, it worked. And it worked great. It works significantly better than my old Pure Gold champ, the GotVapes Sapphire. Much much airier draw. Much more control of the density of the vapor and the throat hit. And more importantly, much better flavor. Only one thing wasn't ideal; the 1.5Ω load was too low for all but my sophisticated mods. It wouldn't work on any of my eGo batteries, including the outstanding Vision Spinner variable voltage eGo batteries. Bummer. It's not that the 1.5Ω mPT3 atty requires a lot of power or anything, it's happy with 7.5 - 10.0 watts, it's that its resistance is too low for the tiny batteries. On the mod I'd been using, I was only running 7.5 watts most of the time.
So I took out the mouthpiece, turned the mPT3 upside down, put it under my arm (yeah, yeah, I have a double boiler, but bite me), and let the gram and a half of Pure Gold settle into the top section of the tank. I took off the bottom of the mPT3 (the same way you fill it), unscrewed the 1.5Ω atty and replaced it with one of the 2.0Ω attys. Put everything back together, turned the mPT3 back over, and put it back under my arm for a couple of minutes. Put it on a battery, took a half dozen unpowered hits, set the battery for 7.5 watts, and... Everything worked perfectly, and now the mPT3 worked on all of my batteries, even the tiny fixed voltage 350mAh eGo I have for stealth. Wheee!
I used the 1.5Ω dual coil atty for about 24 hours before I switched it out for the 2.0Ω dual coil atty. It worked just fine, but I had my battery set for its absolute minimum, and even then sometimes I got a bigger hit for the amount I sucked than I liked. So using the factory 2.0Ω dual coil atty is a much better choice for me. I now have range to adjust any of my vv batteries both below what I like, and higher than I like, which is perfect.
I'm still wrapping my head around being able to fill the mPT3 with $100 worth of Pure Gold, and not having to refill it for a couple of months!!! Oh, and the used 1.5Ω atty that I took out of the mPT3 that was full of Pure Gold? I weighed it when I took it out and then I weighed it again after it had soaked and been agitated in Everclear (95% ethanol). Looks like I only lost 0.04 grams to changing out the atty even though the tank was full. I am not only surprised and pleased by how easy the mPT3 is to clean, but how easy it is too get to (and modify) the atty, and how little waste there is if one has to change out an atty.
A couple of caveats: I haven't been using the mPT3 long enough to know how it will do over a long period of time, and whether the atty will clog up and screw up the draw or start leaking; this is the beginning of the story. Be careful not to lose the tiny O-Rings when you clean your mPT3. And one of the reasons that I used the word "factory" so much in this post is because Kanger stuff, including their replacement attys, gets counterfeited all the time. I made sure I was getting genuine stuff; you should too.
Next adventure with the mPT3 will be to wind my own coil using some ceramic wick instead of the factory silica wick. Probably not right away though, all this testing has me too stoned right now.