Meh I hate my K4. Without the plastic tank, it seeps everyone after filling and turning the juice control on. Not from air holes but from the section under that connects the metal/glass section (prolly due to o rings but since I use the plastic tank it doesn't matter). The vape is anemic in terms of saturation and wetness. It's the biggest grip I have, the thing just won't wick fast enough no matter what gauge I use (thicker wire gave me worse results, and thinner wire the flavor just won't become dense enough). I've tried countless wick configs, some better than others and true both rayon and cotton.
I wanted a squape r lately but I'm holding off on these classic low wattage type tanks to see what these companies do as their next move. I really love the build deck on it and how easy it is to build since you can leave your drill bit or whatever in the channel while you secure leads for a perfect position. But alas I'll see what happens.
On the other hand the subtank mini I bought as my first tank is phenomenal. The density of the vape and the efficiency of the wicking(too much one might even say) is superb. I have tried all manner of builds using even 22 gauge and having the airflow wide open and vaping at nearly 60 watts on a mech with the . To now my preffered 26 gauge or 28 gauge wih the airflow using the smallest hole and a thin bore drip tip, and the flavor is even better than my RDAs with even less vapor and a ton of saturation and wetness. I think this is because of the deck chamber you screw on, it has a nice taper going upward delivering the vape from such a compacted and reduced chamber. It's so wet at 15 watts it shoots fine spit ack up my pallete and leaves a nice film of flavor (not sticky surprisingly but more like a wet warm mist). Whoever designed this thing I doubt they realized how well they made the design. The aesthetics are a bit meh, but in terms of wanting to test flavors, this thing shines better than any atomisers I have tried to date. It seems the space in the Kayfun chamber/inefficient wicking of even 50/50 blends leads to this dry and loss of flavor vape that no matter what you do, won't get you the results this subtank is getting me.
The only reason I am hesitant on the squape is just thinking about if it will be as bad as the Kayfun. It looks insanely well machined and looks great at the smaller form factor when compared to the original reloaded, but I would kill myself if the vape quality is much worse than the subtank especially for that kind of money.
The thing that kills the Kayfun for me is the airflow control, what a piece of garbage, I got the S4 kit and I can tell you, if you don't have it set to the tightest draw, or you have the S4 kits with the single airflow setting, you have to suck hard for a mouth to lung. But since the airflow inlets are bored out so abundantly, you aren't creating enough vaccume to have juice flow throw those small holes of the tank section chamber chimney. Especially with e juice, I cant understand what they were thinking having those holes so small considering how thick juice is. It's very evident of a flawed design considering I can unscrew the section with the chimney intact, and still have a lot of juice not freely flowing from those vertical chimney holes unless I unscrew the drip tip section it then finally beings to flow of I hold it at an angle. Just utterly infuriating.
Meanwhile I can take a ton of drags on the subtank, flip it over fast and unscrew the tank off, look at the wick, and see the thing wet as much. As possibly can be as if I just dropped some juice on it. The wicking is unbelievably great even with 70/30 or 80/20 ratios. With the new premades coils having wider cutouts at the wick section on the side and the RBA section also having side cutouts as opposed to the bottom cutouts similar to the Kayfun. I imagine you can easily run Max VG juice and have it wick with no issues at all. It seems like it uses gravity to push he liquid even when you aren't taking a drag.
If I just knew how well the squape wicked and how the space and geometry is and how it relates to the deck, I would jump on that thing instantly with it's multiple decks. But seeing as how the subtank has a chimney that is a tube that fits directly over the coil (unlike the Kayfun which is a pyramid cone that covers the whole rebuildable deck stupidly) I think that's what creates that insanely dense flavor.
