Okay, my 5-pack of A-type attys arrived today, along with a 5 pack of carts, both from GreenhouseOne.
I paired the carts I just bought with the atty I just bought so I could do a straight out-of-the-box comparison with the other ones I bought last month.
Initially, after blowing out the primer, I wasn't getting a damn thing, and I started thinking, "Aw, crap, same damn problem." The liquid was hardly bubbling up, either. However, when I took out the cart I noticed something I hadn't really thought about initially: The carts that came in my latest package have a silicone cap rather than a plastic one. I didn't really think it mattered much but upon inspection, I noticed that the atty wasn't punching a proper hole through the thin center like it should. The syringe-like thingy in the center of the atomizer was just stretching the silicone rather than poking through it; there was a tiny hole in it, but not enough to let either gravity or suction pull liquid through. Terrible design choice. Even after twisting the cart in the atty to "carve" out the hole, it wasn't making a difference. I'd have to take an Xacto knife and cut it out myself if I want them to work, which I'll probably do if/when I need them. But for now they're going in the spare parts drawer of my vape chest.
Fortunately I still had a bunch of proper carts with plastic caps that I bought from the other place, so I swapped out these new ones with the old ones. Success!
So I've been vaping for ten or so minutes now, and I have to say, this is not bad. Not bad at all. Vapour production is slightly anemic and the throat hit isn't quite as pronounced as normal carts on a similar draw, but it's still very present and satisfying, and no burnt taste if I heat too long or get fibers from a reused and slightly scraggly polyfill plug caught in the bridge. Plus, no leakage! I have a terrible problem with this using thin liquids on the XL attys and I'm constantly unscrewing the atomizer to wipe out wasted juice from the battery and connector end of the atty.
As for taste, well, I have to be honest: My old eGo XL attys are fading a bit and aren't producing long periods of vapour or flavour like they used to, so I've kind of gotten used to weak flavouring over the past month or so that this has been happening. But I can say the flavour is still stronger than it is in the XL atty, so that's a good thing, and so far the flavour and TH have been pretty consistent draw after draw.
Overall I'm pretty pleased, though I've only just started it -- and they do work several orders of magnitude better than the two I bought from the other place. Time will tell how they hold up, of course -- I'm pretty sure these aren't genuine Joye, so the question of quality is up in the air. However, from what I'm hearing it may be difficult to do worse than Joye have done with their tank system, and the purportedly genuine Joye tanks I got before don't work worth a damn, so who knows?
So, yeah. Apart from the ridiculous silicone caps on the carts, I'm going to go ahead give this one the thumbs up. Plus, a 5 pack of attys for $30? Even if they don't last as long as I'd like, that's still a hell of a deal. I paid that much for two real Joye attys.
I think next paycheque I'm going to order the 5-pack of LR attys and give those a try. I'm thinking the bump in vapour and TH will be just the thing to make this the perfect replacement for my XLs. I've never bought LR attys before specifically because of their shortened life span, but I think in this case they might just be worth it.