Had a short run with the Aspire Nautilus, vaped great and had a huge capacity and I even had some success rebuilding it per the process put forth by Rip Trippers, but it turns out it isn't nearly as tough as the KPT. Fell off the coffee table and developed a hairline fracture that put it out of commission until such time as I can acquire new glass. My KPT 2, on the other hand, has been dropped more times than I care to admit and it's still going strong. Went ahead and picked up a Kanger Aero after this incident (yes, I have dropped it since and it's every bit as durable as the KPT before it) and I'm loving it. I can still use my old KPT heads on it which is good because I have a zillion of them. That said, I did successfully rebuild the dual coil head it came with using a single coil out of braided 32g kanthal (7 wraps on 2mm id for 1.4 ohms) without altering the old KPT process much. Only difference was I had to implement a second flavor wick to properly seal the longer side channels. I think these heads will work very well for a vertical coil, but have not built one yet. Overall I really like these new heads. They are taller and have longer side channels for wicking and utilize the newer silicone grommets and the pin has no bottom hole to leak down into the battery (indeed, the 510 connection is sealed off so the only area you could leak out of are the air vents). Of course, the built in airflow control is brilliant. Not quite as good as the Nautilus, but a huge improvement over having to use a separate airflow controller with the 510 air holes (no more fiddling with the grommet to fix air flow problems!).
While I feel the Nautilus does perform slightly better, the Aero gets the edge from me for durability and a much better coil head design. Far easier to rebuild and backward compatible with the old KPT heads.
I'll report back later with vertical build data.
There's no way to accurately locate a proper coil on a mandrel making it impossible to build a proper electrical installation on the head. I ask the question I asked super_x_drifter, what electronics would you spend a dime for today apart from this industry that contained coils like those in the Kangers or Aspires (now hidden from us)? And to add insult to injury be charged almost 20$/5? At % failure rates of perhaps as high as 40% per reports I've had relayed to me by vendors?
Yeah, ripped panned 'em. And yes we can he said (and should) rebuild these (if you want to see what the Aspire is capable of). Who would want to? Apart from an exercise? Show me that newb, I would ask Rip at 20$ a repack.
After going through this trial by fire, I've learned to do this. Understand it, and yes, maybe even endorse a Protank for its engineering. But not for much more than a training tool. A path to enjoying the broader field of vaping opportunities. It can arguably be said that if you've learned to build on a Protank you can build anything. And having gotten there I enjoy the peculiarities of clearomizers which occasionally can be reminiscent of an analog. But it's not much more than a means to en end. Or a hobby, for some maybe, if there weren't so much else available to us that is so much more rewarding and economical. Even, yes, originals by comparison!
It almost begs the question, why are they selling this .....? Why are we buying it!???
I often wonder if we wouldn't have been better off following the path of the custom atomizer in terms of improving our own electronics and not been overwhelmed by this clearomizer marketing phenomenon (gimmick). Not to mention our dependence on external production and near obsession with it.
Perhaps there is something to the Provari/fixed tank stalwarts dedication. At least they're not rebuilding their carto's every other day.
Something to be said for that.
Anyway keep us posted Kaf on its performance and if you get to that DC build, would love to know.
Good luck.
and p.s. Kaf, if you do go the Aspire dark side would you please send me all those old Kanger heads. I've got a zillion of those PT's myself doing test duty like faithful old soldiers in disorderly files. And don't forget the silicone grommets.
