I use the KISAPS principle (keep it as simple as possible, stupid) and mix what I want when I need it. Plug the numbers into the calculator and go. Fast and easy and I get to set the nicotine and PG/VG anywhere I want it any time I want to change it without doing ratio conversions. To be honest, the amount of variation in PG/VG and nicotine that the flavors introduce isn't all that critical, at least to me, but I usually am using under 10% of total flavoring in the first place. And even if you're using more, adding another 2.5% of flavor shouldn't make a very big difference at all.

im one of the lucky ones...im safe and dry.. you got it im
lots...I cant watch the news anymore...its to sad...every channel here...is the same....oh media...