I've decided that my daily vape device is the istick30w with the nautilus mini. Howsoever I want to try a little sub ohming with the prospect of eventually building my own coils. A couple of people recommended the eleaf melo to me but I've been looking at the kanger subtank. I want something that's going to produce massive clouds. Which I can't achieve with the nautilus. Any help is greatly appreciated. Cheers