For other noob DIYers: I had been going by one of the calculators that said 20 drops = a ml. Well it doesn't.Do yourself a favor & take the time to check & see how many it really takes.
I'm a noob, but it seems that most recipes in DIY e-liquid are based on percentages of flavor(s). If you use a dropper I don't see any way to do it w/out knowing the drops/ml.
You need a one mil syringe for flavoring percentages.
say you want /need to add 3% key lime as a secondary flavoring, right? and you're making just a 20 mil batch....
3% of 20mill is is 0.6 mill
You won't be accurate or make quality eliquids using drops