So finally I've ordered a gallon of vg/pg to start making my own eliquids to save money, now the question is I also would like to add 12% nicotine like they sell at my local vape store... im not sure how to mix correctly? So for an example I noticed on wizard labs site we can buy 12mg/ml which im assuming means it contains 12mg of nicotine per ml. that being said, if I wanted to make my own 30ml of ejuice id be mixing 12mg of nictoine multiplied by 30? so 360mg of nicotine?