I just received the Bauway iTank system today. I am getting decent vapour, but it has a harshness to it that seems uncharacteristic based on other (limited) vaping experience, and in a video review one of the members of this forum said it wasn't good when it made a whooshing rather than a crackling sound, and right out of the box both atomizers are making that kind of whooshing sound. Am I doing anything wrong or will this just resolve itself with time? The drags tend to require more energy than I anticipated, too.