I received my first mod (KnightRider/Lavatube) yesterday from Vaporus. I'm using it with 2.0 ohm cartos and SR Stardusts. How on earth do you guys vape at anything over 4.5 volts?! I find that at 4 volts I'm getting such a killer throat hit and the flavor is just perfect. Anything much over that and it gives me a major head rush. Admittedly, I am vaping all 24mg strength juices, which I needed to help me get off the cancer sticks. All of my future juice orders are now definitely going to have to be lower strengths if I'm to keep up with you Voltage Masters. Vape on!