Ok, this is by no means a concise tut... Just how I do it and get no leaking even when it's in my bag... =)
1) New coil! Zaas!
2) Position your coil height so that you can see the whole thing with the chamber cap on
3) Cut your wick about the same size as your coil's ID
4) Trim your wick just so it rests on the top lip of the juice channel
5) Install your tank assy ensuring the AFC is at shut position and your top cap is firmly shut
6) Install the build deck firmly into the base before screwing on the locking ring
7) Keep her vertical and fill her up! (Not to the brim)
8) Shut the top cap firmly back on
9) with the cap and afc closed, turn it upside down and open the airflow and leave it for abit " credits to Vapen00b for this tip
10) Voilà! Happy ending![emoji4]