I see why is so cheap

This is not about pros or cons, just facts:

- Nearly impossible to fill with needle bottle, find something with a long tip.
- One you set the airflow you have to almost take it apart to adjust again.
- Careful when you take the "cap" off to fill, you might end with the glass in your hand too, spilling all .
- Takes some practice to find the perfect length of the wick.
- Not spill proof
- Not sure I love the , have been using the same for a while so believe me, I know how it taste's
- Beautiful
- Easy to install coils

A must: It's a RTA very near of a RDA

Fantastic clouds, savors and easy to coil.
One of my favorite RTA.
The notch coil is a killing, you must built the theorem only with the a notch coil, he is built for that purpose. If for you the quality of restitution of the savors of your is important and the quality of your cloud also: the Theorem is for you.

• 0 out of 1 people found this review useful.

Wismec Theorem - Good Atty

So just received mine, and i must say the is good to great. Almost verging on good RDA's. The notch coil was surprisingly good, although a little touchy, produces hot fast and ramps up faster (recommend dropping the watts for this one). Asides from that really quite good. I tried my own build, 5 wrap, 3mm ID, 2*26AWG claptoned with 32AWg Kanthal, and although really good i still think the notch is better.
The stock drip tip creates a tighter draw but too hot for my liking so switched it for a teflon and really enjoy that combo now. For the price i would absolutely recommend.

As for the finicky airflow design, once its set you don't need to touch it again, so not really an issue.

• 2 out of 2 people found this review useful.

1 week follow up

Here's a follow up after a few days. I've been using this atty approx 50% of the time and I'm really starting to like it.
I took the original wick out and pulsed and doused the notch coil. It glowed very evenly from the middle out with no hot legs. These coils really do ramp up fast.
I reworked it a bit looser through the coil than what they had in there originally. Also cut a diagonal on the end of the wick. kept length a couple of mm off the bottom.
It wicks brilliantly. Can take a few strong pulls and watch the flow up the wicks.
Tried all the airflow variations. The double airflow is just too airy for me. It works well but I like it a bit more constricted. Closing down the double airflow to half does work nicely.
Single airflow over the coil is what i prefer. It's not as hot as it is over the chamber reducer thingy and i prefer that.
I noticed no significnat differences in the various airflow options. There are some, with the single over the reducer being the best by a very small margin, but the increased heat turns me off.
Anyway, next step is to put a clapton in here and see how that goes.
At this point I'm seriously considering buying another.
I can now highly recommend.

• 6 out of 6 people found this review useful.

First Impressions

Ok, got my Theorem this morning.
Here's the unimportant stuff:
Well packaged, everything included.
Container it comes in smells like death, toxic death. Since I quit my sense of smell has returned...today that's a bad thing.
It's a damn good looking tank.

More important stuff:
Driptip is small, tiny actually. I will be replacing it.
Tank is well built. Threading is fine, o-rings are strong. Deck posts are secure. Grubs are good.
Screwing on the top while holding the airflow ring is fiddly. Not cuss-worthy but I do consider it lazy engineering .

First use:
I decided to use the included notch coil and wick for the first impression.
Notch comes out at 0.26
Wick is waaay too long so I cut it so it sits approx 2mm above the bottom of the tank.
Placed the wick in the slots then d it up.
Using a standard dropper tip it was fairly easy to place the through the fill hole. Obviously a needle type tip would be preferable but it's really no problem with a dropper.
I used the single airflow ring and placed it above the chamber reducer thingy or whatever the hell you call it.
After the wick was wet I moved it ever so slightly from the side of the wick channel to addd some air.

d:
For me, i found the sweet spot was 45w
It wicks well, no problem with dry hits.
It drinks like I drink Guinness on jam night at the pub...which is significant.
I had no bad taste from the notch.
Good vapour production
Good , not great but good.
Condensation builds up immediately so you can't really see in after you .
Tank gets hot if you chain.
I used an 80vg 20 pg .

That's it for now. I'll continue to experiment with different builds and airflow options.
Would I buy it again? Don't know yet.

• 9 out of 9 people found this review useful.