All of the above posts reflect what I have come to understand too. Different wire gauges will produce very different results even at the same resistance build.
What I like is for my vape to resemble what I remember from my Marlboro light smoking days - cooler temperature, a ton of vapor and for my unflavored juice to have a bland smoke like flavor. I notice no sweetness whatsoever in it. I prefer low TH but that variable is adjusted by coil / air placement.
Let's assume that everything I'm gonna write is about what I always build -micro coils where the inside diameter is per this chart:
Actually, no need to assume, cause that's all I build and all I'm talking about here.
I like to fire and hit right away for about 3 seconds.
That said, I started with 30 ga around 2 ohms. I run as many wraps as it took to get me to that point.
Then I tried 27 ga and built in the 1 ohm range +/- .2 ohms. I liked the 27 ga for ease of wrapping and the burliness of build but didn't like two things:
1. It is more taxing on the mod in that it arcs at the pin to battery and also very slightly deformed (melted) the fire button on my grand. No shorts, but must produce allot of heat on the firing pin. The first time I ever had to file and noalox my firing pin was about 2 weeks into running this setup. I never had this issue in the many months of running 30 ga wire. I think it's also safe to assume that it's harder on batteries and battery life too?
2. I prefer a smaller outside diameter coil as well as inside. The thicker wire makes a thicker coil.
So I went back to 30 ga. No arcing, immediate heat up and perfect vape for me. I find that after trying the 1ish ohm 27 ga builds that I now prefer a 1.5 ohm 30 ga build.
So in closing: you want a baseline wrap count 10-14. Some might even say 8-12 but I'm saying 10-14. Then you select a gauge wire that allows you to build the resistance you want and stay within the baseline wrap count. Experiment with different gauges - their inexpensive and fun to do
