For me, and virtually any replaceable head device, I keep tasting a very strong aspect of either dry silica or something else being vaporized in the mix, and it doesn't help that the intended flavors of the juice never seem to come through right. Not to mention, on these same set-ups, if I ever use a dark juice, like chocolate or coffee, it instantly tastes like burnt popcorn kernels.
I then tried one of the respected Cisco atties, 3.5ohms, silica wicked, seemingly microcoiled or something near it, and got absolutely clean, stellar flavor for about 45 minutes. It was enough for me to know that my preferred vape does exist. It even worked for a few puffs for the chocolates and coffees! A very "yes" moment.
So I'm eager to see what building my own coil can do for me. I'm not sure what type of silica they used, but whichever one they did, it sure tasted clean in this particular atty - so I wouldn't be too off-put by silica. I say that it can work in the right coil.
If you have any luck with your builds, especially with that Halo Java juice (it notoriously tasted like charcoal in anything I used it in), I'll be sure to follow your lead. Keep us updated!