so I got an Ijust S kit and have been using it for a few weeks now with the 0.3 . so I decided to change with the resistance of 0.5 today but now there is a significant drop in vapor and I don't know why. and I mean like a have to inhale for 5 seconds (a lot) for just 20% of the vapor I would have gotten with the 0.3 in just 2 -3 seconds max. need some help at what am I doing wrong :/