Here is my two cents for people with leaking issues. Understand that the channels are a bit deeper and wider than most other rta's, allowing more juice to the wick at a faster rate. Although I have had no leaking issues with my build done just as the man Trevor Jones showed in his video, if you are using a very thin juice than try sticking just a bit of cotton tail into the upper portion of the channel to not allow juice to directly flow into the deck.
If you are leaking, you are clearly getting a TON of juice flowing as the deck airflow holes are generously raised. I can only imagine how much juice is resting on your deck to even produce leakage.
To put it shortly, if you are leaking......work on your wicking.
If you use a 30/70 pg/vg ratio or higher, follow this method for perfect performance with minimal leakage.
If you are still leaking when laying the atty down, put a tiny bit of your tail into the channel to stop direct flow of juice through an obviously open gap. This tank is sealed much better than any other rta with its sturdy nautilus like gaskets at each end, plus it's threaded chimney into the top cap with added oring. Therefore, the pressure system in this tank is MUCH better than other rta's simply because of the airtight seal.
Think about if, when airtight, you are leaving a completely open gap through the channels up to your wicking hovering on top of the channels. If you have the slightest gap, when taking a draw, that juice is gonna shoot up right past your cotton tail and flood your deck more and more with each puff. It is not rocket science, it just takes some practice, along with some common sense with how to properly wick it depending on viscosity of your juice.