These questions probably proves the short period of time that I've been vaping; Can someone please explain to me the difference between the RDA, RBA & RTA? The benefits to using each of them? The best for flavor, TH (I actually prefer a lighter TH myself), and ease of use? Thank you everyone for sharing your knowledge. I'd be totally lost on so many subjects if it weren't for this forum. I really appreciate everyone being so willing to share their own successes and failures. Thanks again.