At what voltage/wattage are you vaping at? taking it all the way to 5V (I'm on an MVP) has releived the gurgliness a lot. When I refill the tank I remove the head and blow from the battery end to dry it a little, and now it's working fine. It's finger tight to the base, but being a woman it might not be tight enough. But I find it easier to unscrew to refill finger tight like that.