We're not communicating well here I fear. What are you calling the 'brace ring' (their term...)? I believe it's the soft ring you're worried about. It snaps over the nut like piece with the 3 ribs that screws on the white body. The bottom piece in the photo I posted:
The soft 'doughnut' that snaps over the lip on the part above it with the seals. You can see the lip on the top of the part with the seals.
The stem alignment is controlled by those 3 ribs. Not the oven body, hole in the cap or the 'brace ring' we're discussing. The place the oven 'lands' is subject to all kinds of 'tolerance buildup' from the body is bolted to what's below it, and how that attaches on down to the bottom where it then depends on the tube and top plate (and the screws) to get back to the top. The 'Holy Point" in the alignement is that nut with the ribs, everything else is relative to it.
Yes, you could demand extreme precision with all the rest of the parts and end up with very good alignment, but sound engineering/cost control calls for keeping tolerances wide as possible considtent with performance of the completed unit. In short they could make it perfect (or nearly so) but you wouldn't be willing to pay for it?
Arizer has a long history of sound products, IMO they know what they're up to. Design and manufacture. You'll notice very very few problems with Solo and Air. Almost zero 'out of box failures'. Even the battery packs seem to defy the numbers. The could always blow Beta testing and release a turkey of course, it's just the odds are very low. And they could ship you a reject unit, but those odds are mighty long as well. Not impossible, of course, but far less likely than other explanations.
If it were mine I'd have already 'overcharged before first use' and be enjoying it......and probably have more to offer the discussion?
Your call.
OF
Yes, I did not understand correctly, sorry but my english is not good, I help with translators :-)
Yes, what you say I think is correct, what Arizer call "brace ring" should be the upper piece that you say.
Ok, I will try to see how the stems will be straight in the chamber, after removing the small shaving, charging the device and doing some ignition with nothing.
Anyway, I know that extreme precision is not necessary, and I understand that the alignment is all relative to the "nut with ribs".
But, if it were possible for someone else, I would be happy if I could see more device for comparison.
However, I already know the Solo 1, I had the pleasure to try it few days.
I really liked it, that's why I decided to buy the Solo 2.
Then, meanwhile I can share my opinion about the Solo 1 (the Solo 2 seems just an improvement at what was already a great product, in the few aspects where it was lacking).
I start saying that I own : a Mighty Storz and Bickel, a Vapcap omnivap Ti (I had also the OG in glass but is broken), a Vaponic, an MFLB.
I tried a Firefly 2 and a Volcano.
I think that for my needs, the Solo 1 it's the best vaporizer that I tried (I think ... until I don't try the Solo 2 :-) ).
And it's the best also for the efficiency , look at this link ;-) :
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0147286
The taste is phenomenal, the vapour stays gentle in the stem waiting for you to pull (and if you use the cap over the stem it's even better), and if you are gentle with the temperature, a session lasts long.
Considering how little you put in (you can use whole nuggets optimally), you understand why the research in the link above has that extraordinary results of efficiency.
In comparison with my Mighty, I can say that it taste better, use better the material, and has approximately the same battery life, but has a slightly lower building quality.
In my opinion the Mighty has a plastic flavor, but, with the excellent capsules system (where you also puts less material, and leave the chamber clean) and his robustness, it's a great travel companion.
I love the Vaponic, it's very efficient and the taste it's sublime, the taste is better than the Solo in my opinion (is the only one that I think is even better than the Solo), it's really only glass in all air path except for the screen (a small and butane version of the Vapexhale EVO :-) ) . Unfortunately is a little empirical to use (I like to use it warming up a little at a time, tasting it slowly until steam comes out) , and for this and the fact that is glass, is not too much portable, it's better to use when you're comfortable at home, the chamber capacity is very low, but you can use whole nuggets with excellent results.
The Vapcap could be the final word on the butane system vape, but I don't like too much the taste of the Omnivap Ti (I have not tried it too much yet), and the session if you are not careful is too fast.
While the OG, that in my opinion is better than the Omnivap, is still not as good and not exploitable as the Vaponic.
Although I have to say it is handy to use, but I have not yet had a way of finding the best use.
Finally, for my needs would be better the Firefly 2, but actually it is not what it seems, I did not like it, in my opinion is much publicity but not working well.
I would prefer an "on demand" vape, but you could use the Solo removing the tube between hits ... although a bit complicated.
Thanks again for your explanations about the oven of your Air.