Just a question:
In your Kanger heads, do you switch out the native flavor wicks for your own silica? With the initial flavor wicks, I find that they're so loosely woven that they pretty much spread out across the entire coil chamber when wet, and I've never gotten any good tastes from the Kanger series. I've tried using unboiled cotton as both a flavor wick, and eventually re-wicking two different coils, but that was no positive experience at all as I couldn't boil the cotton at the time.
From the tastes I get with the Kanger products, I'm tempted to believe they use some sort of low grade silica that isn't as heat resistant as higher grade, as even when the wicks are soaked, as I get a lot of feedoff tastes from their wicks - even drier silica isn't going to taste that bad as long as it's a little moist.
In my Cisco atty, I literally tried vaping the thing until it went dry, as a test, and I couldn't get it to taste bad - I could literally put one drop of liquid in it, vape it for 8 puffs, and instead of tasting dry silica, all I'd get after those 8 puffs was just possibly the slightest hint of a drier vapor as a warning; none of that acrid, biting, nasty flavor I get when the Protank heads aren't at least sitting in juice. The only time I ever got a clean taste out of this style of head is when the head was literally filled up with juice, like a coil sitting in a pot of liquid.
At the very best, I've gotten just extremely muted, cotton-candy versions of whatever flavor I use, and I just haven't figured out how to make them better - removing some flavor strands sure didn't do the trick for me, and the more I removed, the more it flooded.