The base screws into the mod. Then you are going to place a tank full of juice on it and fill it up making it heavy. While the o-rings might (a very big might considering its sold on FT) hold the tank on, eventually they will fail. All it will take at some point is not holding it upright and the weight of the tank, a coating of ejuice on the orings, and gravity will cause it to fall off of the base. That or drop it and then juice goes everywhere. I have seen this before with the old kayfun extension tanks. Remember there are two types of vapers. Those that have dropped a mod and those that will drop a mod.

Prescription for disaster? Not at all, but perhaps if you carry your mod jogging or during high impact aerobics (lol) or similar, you may want to choose another that you are more comfortable with. I don't own this, and never will, (v8 is a disaster) but quite a few tanks work quite well with friction fit, or turn to lock style systems.

The base screws into the mod. Then you are going to place a tank full of juice on it and fill it up making it heavy. While the o-rings might (a very big might considering its sold on FT) hold the tank on, eventually they will fail. All it will take at some point is not holding it upright and the weight of the tank, a coating of ejuice on the orings, and gravity will cause it to fall off of the base. That or drop it and then juice goes everywhere. I have seen this before with the old kayfun extension tanks. Remember there are two types of vapers. Those that have dropped a mod and those that will drop a mod.

I've been using the SXK V9 KA every day for 2 weeks now, and it definitely get's a thumbs up from me. No issues whatsoever. In fact, I'd go so far as to say that it's one of the best RTA's I've tried (and I've tried a few). I take it to work and throw it in my handbag on it's side; put it in the various different pockets (on it's side) of my different work coats; I have dropped it on the floor multiple times. I'm a fencing contractor so the days are rough physically.

I understand what's being alleged about the o-rings and it's not unreasonable to assume that they could be problematic, but the male/female shaft/orifice are both pretty extensive, fit well, and have three o-rings for good measure; and this seems to have worked well so far.

There's still time yet though. I'll post an update if eliquid starts pissing out of the joint.

The Sputnik has the same kind of set-up but not the same kind of set-up (if you get what I mean). Some times when I pick it up, the tank is cocked and I have to reposition it. I guess this is because there are only 2 o-rings and the surface contact area is only about a third of that on the KAV9.