So I've been vaping for about the past 4 years now and boy have I witnessed so many incredible changes in this industry. I live in San Diego CA where vaping is becoming quite the controversial issue. I worked at one of the first vape shops to open in San Diego after they left the stands in the malls and moved into actual brick and mortar shops. My first vape was one of the original e go pens I believe. It was pretty amazing at the time. After the e go pens I graduated to mechanical mods, firstly being a k101 (I think that was the model name), with a kanger tank, ( similar to a Nautilus) and I was happy. But I never was satisfied with the air flow nor the very small amount of vapor being produced. Building RDA's didn't interest me at the time nor did I like having to constantly drip more juice on the wick. Needless to say when that first Atlantis sub tank arrived, I was in heaven. Now all I vape with are variable voltage\wattage box mods and sub tanks. My current setup is the original snowwolf 200w with the tfv4 tank which I freaking love. Looking to get another vv box soon. Thanks for allowing me to share. Such great info on all things vape related. Thanks!)