Probably over 90% of vapers would be happy with that..a lot probably wouldn't go over 4.2v..I bet these will get down to under $20 in a few months when they are sold under a different name.
I think that most people would quickly figure out that better vapes can be had at 4.8v than 4.2 on certain juice/atty combinations. I am beginning to accept as true a suspicion that I've had for some time now; that you get a better vape by arriving at X number of watts via higher volts/higher res than through lower volts/lower res. If you try to "disprove" that, I think you will lose. I think it has a lot to do with coil surface area.
And then, if you're talking about using 4.2 volts on as low a res as a 1.5 dual coil, you'd be getting only 5.8 watts per coil. At 4.8v, that goes up to 7.68, which would almost undoubtedly give a much better vape.
And I'll take that bet. I think Joyetech will be selling the Twist for about $29. I can't really see anyone beating that by such a large margin as you suggest, if anyone even has the resources or inclination to spend all of the R & D money that it would take to develop a similar device. At especially not in the next couple of months.
What's the wager? I suggest 30ml of the juice of the winner's choice.
I would love to try one of these. I don't think I would ever vape up to 6 volts anyway.
Bear in mind that vaping at 6 volts isn't like Spinal Taps' amps that "go up to 11" Even with a single coil 3ohm carto, 6 volts puts 12 watts to it, which is hardly a crazy amount. Six volts on a dual coil 2.0 ohm carto puts out 9 watts per coil; right in the sweet spot.
I think it's indisputable that a full-range (3-6V) VV device (or VW like the Darwin) is the best, and really only, way to go to get the best vape on just about any combination of juices and atty resistances. There are limitations, based on amperage, that limit most VV devices when powering very low res attys, but the higher the amp rating of the device, the less of a problem it is.