What's NZ? (Hope that's not a stupid question!).
from hitting the links in this forumn... its a "NEAR ZERO" juice.
i dont see the point of it unless you WANT/HAVE to use 50% more DIY flavor and gunk up coils 3/4x faster..... while lowering your nicotine levels...
edit: added info: from personal experiance, anything past 30%vg gunks up coils faster, and past 50%vg im PERSONALY changing coils every day. i use 50/50 juice with 10% flavor. any more flavor and i would probably be changing coils after every tank.... just from these personal experiances, is why i have said what i said above the "EDIT" line ^^^^^
also, from many tests, it seams anything lower then 6mg is pointless to make because "I personaly" cannot feel it. i think its a waste of nicotine