This step is most important...too much cotton will choke the coil, and you will get dry hits...when you pull the cotton through, if you see it start to bunch up, pull a tiny bit away so there's not too much inside the coil. Cotton expands A LOT with juice, whereas silica does not.
Once your happy with the amount of cotton, trim it flush with the metal flange on the cup.
juice it up...it will hold probably 5-7 drops.
Reinstall the post/cap, and the plastic washer. Put it in the base, fill your tank, let it sit for a couple of minutes, and vape away. You might get a little cotton taste, but only for a couple of drags...you'll never go back to silica.
