It can be vapors tongue or a bad atomizer.
The ny cheesecake has huge flavor at 2% with a good built atomizer for the fully saturated 8% is it..
I always brush my teeth with minty toothpaste then rinse well and try new flavors. For some reason the tooth brushing allows me to taste better.. When I think an e juice is bland I do that and it helps a lot. Cold ejuice in a warm room also mutes taste...
Yes I've been using literally a drop per 10ml as of late of EM.