Alright, so I've been vaping for a while now and lately I've noticed that I get juice in a shop and I vape it in the shop and I love it, same thing for that whole day, I love it. Then after that day it always turns harsh. I have an ipv2s and a doge v1 atomizer and an arctic subtank(which is what I always use) this has happened with multiple lines of juice with different PG/VG ratio, different flavors, but always 3mg nic. I've rewicked, rebuilt, and everything and its always harsh after the second day. Its good juice too, its not ....ty, so any ideas?