I've been making juice for about 3 months now using pg nicotine (36mg) but last time I ordered it was sold out so I opted for the VG. It's totally changed the juice, I make 20ml bottles with 3mg nic. It was fine with the pg but with the vg it burns - not dry burn due to the thicker juice but rather a throat burn that I associate with higher levels of nicotine. I sell on a small scale and my customers have reported the same feeling. It's making it difficult to inhale. I've searched for an answer as I feel that my ratios need to be adapted but I have yet to find any info as to how much nicotine I should add into my mix with the VG nic. If anyone could provide any info it would be greatly appreciated!