I am new to vaping, and have just started dabbling in RDA's. In researching how to build my own coils, I have found that there are so many different ways in which people do this. I've built the regular micro coils, nano dragons, diamonds etc... and I keep seeing vertical coils. What is the purpose in building coils vertically versus parallel to the deck? I'm loving the idea of having control of my set up and RDAs definitely provide more flavor than my mini pro tank 2's and 3's. Sorry for such a noob question but just trying to educate myself