If you like the standard atty at 3.7v, you'll most likely hate it at 6v - the vapor will taste burnt and be incredibly harsh. The high voltage atomizers will bring the wattage back down to an acceptable level. I would order one of each 6v and 7.4v (4.5 ohm and 5.2 ohm) atomizers and see which one you prefer on 2x 3v batteries. vaping has a lot to do with personal preference but the custom atomziers add a lot choices for vapers these days, I'm really glad Drew decided to start carrying them 