I use 2 Subvods, from my own personal experience they work very well with the 1.2 OCC horizontal coils. I do rebuild them with 30g SS and get 1.0 - 1.1 coils, I have tried 28g SS and get .7 - .8 coils, but with the lower resistance the tanks get hot when chain vaping. I have found that when I use cotton to wick them, I get a few dry hits. Rayon wicks seem to work much better in them with no dry hits even when chain vaping. I do use a 1/8 round jewelers file to make the holes a little bigger, and that helps too. This is just my opinion, and may not work for other people, but it works for me.