Thank you so much for allowing me to join this forum. I have been using my e-cig for about 6 years now. I have used, and love the MVP line of mods. Started with a MVP 2 and graduated to MVP 3. It is a great little mod. The tanks I use are the iclear 30B and the Kanger tech protech 3. I have never had any problems using these two tanks. I just received my new MVP 4. I have been reading the instructions. It sounds like I will have to change to another kind of tank. That is my question. I know it sounds funny but I have a hard time with all the setting. The watts, volts and temp , and what is this "I need to calibrate" this mod? It is like reading Greek. If someone can help me simplify this, in terms that I can understand. And, if I need to change tanks. I am really hoping I won't have to go to some fancy tank because I know how to fill the ones I have been using. Any help or advice you can give me would be appreciated. Thank you again for letting me join this forum. It will be good to have a place where I can ask questions.