So I picked one of these up at a b&m and rebuilt a single coil. It had been a while since I had built kanger heads, so I used higher guage mystery wire I had in the spare parts vape box(32??30??) long story short coil ended up at 2.5 ohms wicked with rayon. Fired it at 10 watts ( have not vaped a coil above 1.6 in months) all I can say is that I am very impressed. Flavor vapor and throat hit were fantastic!! The only thing missing was the heat , but I discovered I don't need to vape at low res high watts all the time. I feel completely satisfied with this vape, not to mention my battery life on my xpv lasts forever