eVic Firmwareupgrade v1.1 » Mountain Prophet
It's in German but answers your question. The eVic throttles voltage past 11W, so no, it will not go past 11W even in VV mode with a low res atty. And it doesn't seem to be dead nuts accurate but in the ballpark.
I have both the eVic and the Vamo. The Vamo is heavier and feels sturdier but actually looks more cheaply made IMO. The Vamo is also much larger. With the Vamo you can stack 18350's which actually gives better performance over a single 18350/18650 from my own testing, but again it's huge. Also, battery rattle is a problem. Stacked or single 18350 isn't an issue, but a single 18650, even button top, can rattle around and shut the device off. Stretching the spring seems to help a little bit, but when you go back to stacked 18350, don't overtighten or you'll compress the spring again and have to keep stretching it. Also, there is a gap between the base of the tube and the end cap with stacked 18350, which isn't too big an issue but is noticeable...and adds just that much more length to an already long device. The Vamo does seem to give a warmer vape given the same power settings between the two, though the eVic seems to burn a bit more smooth than the more "pop & crackle" of the Vamo. I definitely like the looks of the eVic much better, and the screen and data present is MUCH better and more elegantly displayed. Honestly for raw horsepower, I'd have to give it to the Vamo, but for an all around better device (size, weight, display, feel) I'd give it to the eVic. They do perform similarly.
That being said, I've been converted to low-res RBA's and mechanical mods. Neither the Vamo nor eVic come close in performance, feel, heft, or style to a <1 ohm 28awg coiled Genesis style RBA on a mechanical mod. I've tried higher resistances using the Vamo and eVic, single 18350/18650, stacked 18350 on the Vamo, single coil, dual coil/dual wick, from 1.3-2.4 ohm, and they just don't come close. But if clearomizers/vivi novas/carto tanks are your thing, then VV/VW is the way to go.