I want to get into rebuilding rda's and rba's eventually, not quite yet, but all these equations and different batteries and such are confusing. It's making me think of questions like, if I build an IGO W dual coil, will it work on my MVP? If not, what kind of battery/mod do I need to get, and what info do I need to take into account? Stupid noob stuff like that. I've read a few posts on ECR and watched a bunch of videos on Youtube but I still don't feel like I'm getting the full explanation I'm looking for, I guess. If not on ECF, is there a good tutorial and/or video for people like me? Thanks!