Just got my arctic tank from myvaporstore.com set it on istick 50w, made sure when I poured the juice in I didn't get any in the center. At first it works perfectly then after vaping for a few mins it starts gurgling and spitting juice in my mouth. I'm running .5 ohm coil at about 32 watts max vg juice from mbv. Let juice sit for a few minutes after filling and everything. Had a nautilus awhile back and it did it to me too. So I think it's something I'm doing wrong. I hate getting the juice taste and feeling nauseous. Changed to another coil and it happened again. Also happened when I set up my gfs (same set up as mine).