Hello my name is Stewart and i just got started in to vaping. Right now I have a ProTank II and some EVOD tanks with a Vision Twist. I am really looking in to the DNA 20 tube MODs. Any Ideas out there that dont cost an arm and a leg? That would be great. Also I do understand Ohms Law and going to get in the a RBA soon. What would be a good RBA with a tank. I do rebuild the coils/wicks for the EVOD/ProTank already.