I think my response was a little over-impassioned. Let's consider some things.
Right now, the U.S. is the buyers market for the slew of electronics crap that China is pounding out. Every other month, they're coming out with the "Next Big Thing":
1. Clear cartomizers
2. Clear cartomizers that light up
3. Clear cartomizers that light up and change color
4. Clear cartomizers that play MP3's
5. Clear cartomizers that wipe your .....
and on and on and on. And there IS a market for this as there are droves of gullible, cash carrying people willing to wait and pay out good money for the "Next Big Thing". What people aren't considering is that they're paying good money ONLY to the vendors that are carrying this crap. I guarantee that the vendors are only paying $1 on every $10 that they're charging you for this garbage. And it IS garbage.
Mind you, some very great ideas HAVE come out of China in terms of electronics. However, to keep costs down for any potential vendors, they are making this stuff with the cheapest materials they can muster and rarely guarantee the quality of the products. Most vendors have to eat a lot of losses because of this, hence the necessities to over-inflate prices, so that they can cover losses and not tap into that precious profit margin, because China won't back their wares.
Even though the ideas themselves are fantastic, the materials used to make these ideas come to fruition, most likely falls incredibly short of being able to live up to its intended purpose.
So, you're buying these clear plastic things that seem to be water soluable and since you paid good money, you're wondering why these damned things aren't working. Well, paying good money, doesn't make an electronic device work, using good MATERIALS ensures better performance.
Since the insanely cheap plastics used for these "next big things" may be slightly heat resistant, they are most certainly NOT chemical resistant, that would cost WAY too much. So, while they may be able to accommodate those playful little kitten liquids like a Ruyan Apple flavor, they WON'T hold up to a full flavor, cinnamon heavy liquids like GB or AC. The cinnamon degrades the plastics and they crumble and we have 100 customers calling to say there is something wrong with the liquid, never considering the cheap plastic stuff they're using.
It's just best to stay away from the clear plastic stuff. Or buy playful kitten liquids.