I need help with the RBA also. I started vaping 10 months ago with a basic ego tank and have since moved on to a mechanical mod with a Aero Mega. I bought the kayfun lite and spent a lot of time building coils until I got it perfect, fixed it all up only to find that it wasn't even close to what I expected. I don't know if I did something wrong or what but I really do get the most rich flavor from my aero mega and my t-Dux 4 that I ever did from the kayfun. I also bought a basic rda to play with and after several builds I still don't understand what the hype is about. My liquid didn't taste any better (once it had a metal like taste), plus it took lots of time to get the coil built right, and it leaked. Why do all that instead of using a tank with a replacement coil? Am I missing something? I used kanthal wire and ekowool when I built the coil, if I did this wrong or forgot to do something I would really like to know. I want to get some use out of my $45 kayfun 