I'm going to make some juice for my son. He says he likes 18mg for the Aerotank, and 6mg for dripping. He does not DIY, so he has no idea about flavor percentages. He says the 50/50 mix I made seems like the commercial stuff he was buying, so I guess I should make both of the juices at 50/50. Should I use the same flavor %? Seems like the folks here who use drippers need less?