The ring under the tank goes from left to right so you can adjust it, also comes with 2 different pins for the 510, one with no holes in it so you only get get side airflow or the 510 with holes which then opens the bottom and side airflow, there is a ton of ways to setup the airflow but once you get what you like then it's just amazing
Hey man so since it's a MTL RTA, you should be using 2.5 coils, so you just gotta put the right amount of cotton for that diameter of coil(tight but not too tight) and then because it uses capillary action to wick meaning it pulls juice up the cotton to the coil, my biggest suggestion is to comb out some cotton for the tails so it makes it easier for the juice to get to the coil but only lightly comb it, if you make the tails to thin, the tank will leak like crazy, just lightly put the cotton into the groves on the side(the fluffier the better) juice up the coil and tails a little, screw the cap on and it should be smooth sailing.
