My question is I bought a Kanger subox mini and it works OK except it leaks occasionally a little juice through the pull holes or air flow base. What can I do to stop losing my juices? Another question is I'm using the original 0.5 ohm coil that came with it and have been for the two months I've had it. It works fine for what I need but when do I need to change the wicks? So far the original is doing fine it seems? Thank you!