Ok I have 2 Nautilus tanks 5ml I love but the problem I'm having is I put a new coil in then vape the tank till half gone then refill so it doesn't mess up my coil and it tastes burnt no matter what I do. I let it set for awhile still taste like burnt I push button to let more juice come up still taste burnt.This is happening evertime it's really ticking me off the only way I can get a good taste again is to put anot her new coil in so every other day or everyday I'm putting a new coil in I can't keep doing this plz someone tell me what I'm doing wrong.These are the real coils I don't get it I don't let it get dry plz someone help me it's costing to much for coils. Thanks so much