But if you have VV/VW you have both and one is for free. I'm very happy with .5W increments. Not everyone is.My friend had the same argument. Then we did the math. You have more control over wattage with .1 volt increments. On his mvp he gets .9 more watts at his coil qith 5v than pushing its 11 watt limit. Food for thought. I NEVER use vw when I have vv.