I have a eLeaf iStick Pico 75W and it is my first vape. I bought it about 6 months ago from a local tobacco store and have had few problems since. I changed the coil once it started to burn and taste really bad and switched it for a higher resistance coil that came with the kit. Some people on the forum have suggested that you need to prime the coil and change wattage when doing this but keeping it at its default 60W seemed to be fine. However, I recently got new vape juice after running out of my first juice and every time I first start to vape after not vaping for a few hours the vapor tastes horrendous and it burns almost as bad as a heavy cigarette. It seems that after a "warm-up" period the juice seems to become less viscous and starts to produce more vapor. Any suggestions on how to fix this problem? (side note) The coil was just changed 3 months ago but i haven't used the vape until about 3 days ago. (2nd side note) The new juice I am using is from Vapor State and is the 6mg tropical punch flavor.