I have been trying a lot of flavor and liquid in my vaping try out, but now I am very close to the perfect one to be use on the 510 manual, some kind of a Cuban soft flavor a mix Cuban Brazilian tobacco that makes a lot of clouds of vapor and a good hit and only 10mg of nic but makes you fell like 24 mg (it is my own creation), I just want to wait for a few friend of mine that I sent a sample to tell me the final opinion, after that I am going to be sending a sample to 20 member of this forum by their membership status and the date of their membership, but the rules are going to be post, I have not make my mind yet. I just want opinions