I have not been vaping for too long. But i bought a DIY kit because after seeing Wicked Liquids calculator it was simple to understand. But then i ordered a kit from the DIY flavor shack and their nicotine level was 36, not 60. So the Wicked calc was incorrect for my amount of nicotine and the DIY shacks instructions were so confusing to me. I need a MEDIUM STRENGTH, and i have about 8 different flavors i can use. I just need it put in a simple way for me to make a 5 ml bottle. Thank You all, this website has been a HUGE help!!