The most important thing for me is to find out if this burning cart problem i've read about has been solved in either V4L or KR808D ?
I'm not sure what the paranoia and hysteria about 'burning carts' is or who started it or where it was started..but you sure read and watch some interesting things on other forums or subforums here about this.
I've dissected numerous old carts ive killed, cause i like to tinker. Internally they can and do have the atty burn through the wick material which sits between the batting and the atomizer coil.
I've seen people say "who knows what you're inhaling when a Cartomizer burns" and similar quotes and it always puzzles me when I read such statements.
If you're vaping a 6v device..you better be dripping if you fear burning strange materials...and let's be serious for a moment...are you positive about whats in a 901/510/801/m401 atty? some of it is metal..what kind of metal? how do they respond to over heating..what percentage of metal is burned off with every drag? how much are you inhaling? I'f you use a cart, youre burning some cart material if youre not pretty careful.odds are you will even if you are.
What happens to the juice when it's incinerated? Not heated to the temperature at which it vaporizes, but far above and beyond that temperature...right to smoke? what does it make? what new chemicals are created in that inferno? There is a specific temperature at which PG vaporizes, heating beyond that temperature continues to vaporize up to a point..but very far beyond it and the liquid is incinerated.
The reality is that people will *say* anything. Here in the U.S. we have a wonderful right known as "freedom of speech". We can literally say anything. That doesn't mean that everyone who says something is right.
One thing is for certain. You're not inhaling over 4000 chemicals and combustion by products no matter what device you use or how you use it. I've suffered no ill effects from any of the devices I've used, and prefer cartomizers because of their ease of use.
I just took apart a cartomizer which was retired for "burnt taste' and inside, there is a tiny synthetic woven material..much like is used for high temperature wire insulation in electric motors, then the atomizer coil, then another piece of that nylon/synthetic insulation, and then some apparently woven cloth material similar to teabag material..like a soft cloth..fairly absorbant, probably a polyester weave, but it could be cotton, it looks a lot like bandaging material of some kind. None of it is burned through, however some of it is blackened, probably cause of atomizer overheating the tiny bit of remaining juice in a cart that was vaped a little beyond the stopping point..the blackened areas came out for the most part under tap water although some staining remained. this is almost certainly baked juice which was incinerated.
If i'm right, and that is baked juice, then a 6v device fills your lungs with whatever that is once its incinerated instead of vaped, with every drag.
Important to note the batting material isnt even darkened, and could and likely will be reused by me in another device after washing. The entire cartomizer most likely could have been re-used after washing, but i draw the line at washing a disposable cartomizer.
I understand as much as i can about what I'm inhaling, and i understand that there are things i may not fully understand about what I'm inhaling. I do it willingly, I try to keep informed, and when I don't understand, i read (sometimes misinformation) and weigh what i read against what I know or can prove to be true. Vaping is a choice, and I make it every day, as an educated decision. I think everyone should make that decision on their own, with as much factual information as is available.
Unfortunately; just because it's printed does not make it fact. Many times it's "opinion" and sometimes, misguided opinion. Your mileage may vary.