Thanks for the info.... so making a .7 ohm coil with larger wire gives a better vape....then making a 1.0 ohm coil with the same wire will produce a vape that is not as good as a .7 ohm coil? just wanting to better understand....thx
I can't answer your question, only you can answer your question young grasshopper
There are to many variables to say yes or no. Here is my take - It could produce a better vape as long there was enough juice available to be vaporized by the added heat, or could be harsh and nasty if there isn't enough juice and you get into a dry burn situation.
A lot of this goes into what is discussed in the thread that your probably familiar with
http://www.e-cigarette-forum.com/fo...-not-matter-its-all-about-wire-temp-read.html
But here is an analogy for how I understand things...
Think of it like a gas engine. You have fuel and air, the more of both at the right mixture the more power you get. But to much fuel in the mixture and the engine runs rich and eventually may foul a spark plug or etc., to much air in the mixture and the engine runs lean and can get really hot leading to all sorts of problems or etc. So no matter if your trying to get down the drag strip as fast as possible, going on a Sunday cruise, or lugging a trailer up a long hill, you want the fuel mixture correct. You just want more of it for drag racing or lugging the trailer.
Now that is oversimplifying an engine....but in an atty you have juice and heat (coil) and a delivery system (wick)
So like in an engine you want the right fuel mixture and qty for the load, an atty you want the correct amount of heat to vaporize the qty of juice being delivered. (my analogy is kind of falling apart, but I hope you follow)
So I would say a carto is like a nice Sunday cruise in a nice reliable and comfortable car. Its not capable of getting you down the drag strip the fastest, but it gets you from point A to point B reliably and uses a lot less fuel to do so.
An RBA can be setup a lot of ways but for this its going to be the drag car, setup to deliver as much fuel and air as possible to get you down the strip as fast as possible with out blowing up. The RBA like a race car has many more setting and tweaks available to maximize the performance, but one thing remains very important. You want the correct amount of heat for supply of juice. To much heat and not enough juice is going to be a harsh nasty vape, to much juice and not enough heat and you may not get a vape at all.
Like a finely tuned engine, its not likely that you can simply change one thing and increase performance. Unless it was not running efficiently to start with.
The same holds true for your atty, simply reducing the ohm amount of the coil would only produce a better vape if there was already excess juice that wasn't being efficiently used before.
Then you get into the leapfrog game of increase this to keep up with that, to get the ultimate "drag race" RBA. Which is where I think Visus's sub-ohm coils = overnic, comes into play. Because if a person is use to a particular amount of vapor and then switches to a setup that produces either a much more efficient vape of their current setup or greater performance "drag race" vape. It would make sense that the amount of juice being efficiently vaped would go up as would intake of nic.
But it all comes down to person preference, you are the performance measuring device.
sub ohm coil = over nic 
.. I can vape 12mg all day with a 510-t or ce4, nova, genny @2.4Ω no problems -- a few locomotive vapes on a sub or micro coil and weird overnic'd feels..
