I'v had my 510 about 2 weeks now and have been refilling with 24mg juice. I still need an analog about 3 - 5 times a day to get that extra nic. pop. Can someone recommend good 36mg tobacco flav juice? Also I would like to find a US mfg. You gotta be a little worried with stuff from China due to all the tainted dogfood, baby formula, etc. THANKS