Well, here's some strange news - just tried the French Vanilla, which is almost just as dark as the coffee, and it's working generally ok. Not fantastically, it's presenting a little bit of a dry vape and presenting some throat tightness, which is a bit odd, but it's not tasting burnt or anything. Sort of a very, very, very light vanilla.
I'm just trying to figure the issue out like anyone else, and yes, I will ignore advice that comes across as "You're setting your non-VV battery too high." or "A 2.4ohm coil is too hot." or "You came down with vaper's tongue in a span of 10 minutes even if you didn't eat, drink, or smoke anything." When it comes down to it, these power aspects are the combinations that actually give me a great result when shop sampling, though they may use 1.8ohm coils, not sure.
To me, there's just a standard in vaping, and I think the vaping community as a whole needs to move past power and vaper's tongue issues when helping users that get extreme results that can't readily be properly explained by vaper's tongue or the power levels that normal vaping devices are intended to yield. To my knowledge, vaper's tongue can cause some muting, or maybe some oddity flavors on some juices. I don't believe there's any science out there that'd explain a person tasting an extreme burnt taste or metallic flavors, or whatever.
It comes across to me just like some run-around advice that any vendor would give to avoid changing out a bad head or a bad juice. That's what I've always had a problem with, yet I don't get rude about my issue with that type of advice until it gets to the point someone tries to accuse me of not knowing what I'm doing. I do get right with people in that situation, I don't appreciate run-around advice and insults, especially when it's not correct, and that's why I think ECF is a clown fest at times. This forum has always treated me like any scam artist vendor would do, and on top of that, the issues don't get solved.
Now, when it comes to the more specific advice, the stuff that indeed sounds logical, I'm all for trying stuff out, and I plan to do so, but so far, I haven't really heard much in the way of a set-in-stone thing that fixes this issue. I've heard some tips like trying higher power, or letting the wick soak overnight, or steeping, but when it comes down to it, I'm not seeing an overwhelming pattern of what works, and it's still jumping out to me that there's a bigger issue to take in hand - simply because I've gotten this result across so many juices and so many heads, batteries, and atomizers.
Yes, this is an issue that I've seen hundreds of users report, the burning of coffee juice, I've seen it on multiple forums, and from the issue, it seems like a mystery issue that has been plaguing users since vaping first began. I've even had this result across a couple brands of pre-filled cartos, like Blu and their own coffees. When you have a Blu, there's not much you can do with it - it's an auto-battery, and what comes with it should work.
This isn't just a "me" issue. I've seen this situation across hundreds of users, and as I said, most of the time, this forum seems to dismiss the issues as vaper's tongue or a user mistake, and I don't believe that's the issue. I believe there's a bigger factor at hand, one that is more complex, because the stories and the situations are so exactly alike from user to user. People can try to make me out to be the most cursed person here, but I literally have never reported a problem that I've never seen about 100 times across the entirety of the forum.
In most of those cases, the problem is never fixed, people either move onto a new device, or a new juice, or whatever. That's not what I'm about. I'm about saving money, and getting truly good juices to work as the manufacturer intended. For example, I trust Halo, I trust that Halo's a brand that tests their own products are obviously getting a creamy result on the chocolates and coffees, just like I did when I sampled Halo's juices at a juice bar (a local vendor indeed sells their juice.) I know the results that I believe they intend. I do not think Halo intends for their coffees and chocolates to taste burnt. That's my belief. I don't think it's a taste issue. I've even talked to many vendors who say this experience is nowhere near normal or what they intend.
But the vaping community at large seems to think this is "Just what coffees and chocolates do." or even "That's what their made to do." and yet that is not the truth. The truth is, there's a standard of what these juices are supposed to do, and wether it's a coil problem, an unfixable manufacturing residue problem, or a problem with shorts or connectivity, or a battery issue, too many users experience this with these juices for this to be something I myself will brush off. I want to find out what causes this, both for my experience and for hundreds of others, and if I can find out why this is happening, then I have a gut feeling that it'll expose exactly why the Evod coils (and any others) simultaniously mute light flavors out the .....
It really is as though no juices work right on these devices, but that the light ones simply at least don't burn. It's not like I'm getting fantastic results with the light juices. They're simply not burning. But they're extremely muted. If I remove a flavor wick, the thing leaks - even simply turning the rubber gasket upside down causes some flooding every now and then, and doesn't improve the flavor on top of that. That's where I run into a dead end of what can be wrong.
My personal theory? Beyond anything else, it's been my theory since day one that something is causing my coils to get too hot in comparison to the power settings. Beyond anything else, it's what could explain the severe metallic taste I get at higher power, and the instant burned juice with darker juices. I don't personally believe the lines are as clear as "Oh, you're battery would explode." or "Oh, the tank would melt." I believe there's obviously ranges of temperature that are still well below anything physically dangerous, but could simply be way too hot for what the device intends.
Or, like I've said before, it could be "spots" on the coil that are doing this. It'd stand to reason that if there was any type of short or anything, that it could cause one part of the coil to get super hot, and the other part to not get hot at all. I don't know the full details of how that works, but it's simply what makes common sense to me. And from what I can tell about shorts in my testing, you can practically do anything to a coil, touch it with pliers, anything, and it still reads the same ohms. Ohm checkers, imo, seem a bit ridiculous when it comes to actually checking for interference with wire, but again, who knows, I sure don't. I'm just trying to find out.