I have been vaping since 1/2/14. Not one slip back into analog. I quit using the new Blu starter pack. I have two of them, and I alternate two different flavors at a time. So far, so good, although I would like to move forward with vaping, I cannot for the life of me determine what the next step is. There seem to be so many choices, and so much information, I feel overwhelmed. I like the Blu, and I am getting about 4 days out of each cartridge, but I can definitely tell the burning taste that has been described here. So, is there a primer somewhere for steps to upgrade?