No more asssumptions by me so I sent a PM for clarification and will figure it out from there
Read and replied.
The information I'm getting from videos, PDFs, and so on seems to be for previous versions of the UFS. I didn't realize that I had a newer version. Looking it over, I can see why using a drip tip might seem to make the extension a moot point, in that the drip tip drops in all the way to the atomizer rather than needing to bring the atty up to a certain height to meet up with a fixed mouthpiece. Kudos to Imeo for introducing that flexibility! -- although I rather like the coordinated look of the original mouthpiece, and if the metal ones will fit the new UFS, I'll be buying one soon.
Here's the issue I was originally trying to address: the atty was flooding, almost instantly.
My original suspicion: since the atty wasn't tall enough to mate up to the o-ring in the new mouthpiece-replacing-collar, some angle of tilt or quirk of fluid dynamics was pulling the juice past a seal that was supposed to keep it out.
After watching the video I mentioned above, I realize that the atty was actually flooding from below, because I was opening the juice control and the air control at the same time; the UFS tank would empty into the collection tank, when then emptied out the air control holes.
Now I have a different problem with a similar result, using a taller (dual-coil) atomizer. The new atty extends just high enough to seal against the o-ring in the top collar, and my drip tip slides nicely into that. However, when I try to make sure the juice flow is completely off (or when I've opened it a bit and want to shut it again), turning the juice control also turns the atomizer. The atty slowly unscrews from its seat, and next thing I know, POP! the UFS tank has come loose from the collection tank below it.
Worst-case scenario at that point is that all the juice runs out everywhere. Best-case scenario is that I keep it from popping free, but the juice runs down through the atty connection into the collection tank, and I have to grow three new hands and enlist both cats to remove the whole assembly from the battery compartment, drain anything left in the UFS tank into an empty container, remove the UFS, turn the collection tank upside down with a finger as a stopper, unscrew the bottom of the collection tank, and drain that as well to reclaim the juice, then clean everything up and start over loading the UFS.
This gets pretty frustrating when the UFS tank pops free while I'm loading it and haven't even started vaping yet.
I'm sure I'm missing something here, because this beauty is too well-designed to be nurturing a fundamental design flaw like "operating the controls breaks the system in the presence of a good seal". I've verified that the juice control turns in the
unscrew direction to close, and understand now why it works that way. Is the "juice control" something more specific than turning the whole juice tank on its threads?
I worry that I'm being unclear. Let me try a tl;dr version.
The atty being screwed in is supposed to keep the UFS tank from coming completely unscrewed.
However, turning the UFS tank (and/or something else I do) unscrews the atty, so it no longer holds the tank down.
Then, when I turn the tank in the unscrew/close direction, it comes completely unscrewed and sometimes just pops off completely.
Even if the tank doesn't come all the way off, the atty "seat" fills with fluid so I can't just screw it back down, and that fluid then drains into the collection tank.
I'm pretty sure this means I'm still doing it wrong.
