The SXK clone I have is garbage...
One glaring fault with it...which to those that don't really pay attention, will surely cause it to short. The way the positive contact is made... it moves around a lot, even when the BF pin in tight, has a lot of play...tighten down the leads, the whole thing will hit the well...sure one could slide it back so it doesn't touch... but all one has to do it put in a new coil and absent mindedly forget its touching and SHORT. Not that-that happened, but it really could.
I am sure the authentic ( guessing truly ) doesn't have this glaring issue, but if it does and the masses are dealing with something like this, my goodness.
I also broke the whole thing down, trying to isolate the issue, and to me its a tolerance issue with the positive and that it was milled to small or that the peek insulator inner diameter is to large.
The base O-ring to hold the barrel is to small, swapped it out for a thicker one and the barrel holds in place now...with the stock one, just a hint of juice and you could remove the whole top barrel and all with little effort holding the DT lol.
Now it vapes ok if you pay mind to that glaring issue...but it doesn't vape better than the Flave, Flave 22, Haku. I will say one thing that this RSA nails, is AF...so smooth at all settings.