I pretty much stick with 26 gauge wire. So I can't really say on the wire wraps. As far as the Magma goes the only thing that I could really find that vaped well on it imo is a single parallel coil. It hits hot and dense if that is what you are looking for. It'll give nice dense vapor full of flavor. I don't like to use dual coils on it because one you lose that huge
juice well the Magma has and two I couldn't get enough airflow even with the ring off for dual coils imo. I run mine wide open on the largest holes on the AFC ring even with a single parallel coil. Another thing is when you build it you can control the flavor and throat hit this thing kicks out with your coil placement. You want the coil right over the hole in the deck of course. If you lower the coil to the deck as close as you can get it your flavor is going to come through better. Your throat hit is also going to increase as you get closer to the hole in the deck. Also when you wick the magma just put enough cotton in it to reach the bottom of the well from your coil. The build I'm using is .4 ohms and I run it anywhere 32-45w. Be forewarned though it will suck juice with this build, but the flavor really shines. Again really dense vapor (not a lot just thick white vapor), warm, and full of flavor. I was really upset I bought this atty when I first got it. The vapor was whispy and flavorless on a single coil at 1.2 ohm. Any sub ohm build tasted burnt with okay vapor production for me. I'm not saying those builds wouldn't be for you, because hey who knows you might like a different vape than me. But I bought the Magma because I was told it was a warmer and flavorful vape. They only way I could really get it to do right or perform as advertised to me was a single parallel coil close to the deck.