My first evening vaping with a mod/tank (Think Vape Finder DNS75c & Siren 2). Using the included coil tonight, I tried a variety of wattage's, but was unable to feel that I had it "dialed in" so far as getting the taste I desire. My only other experience is using a pod like my Kandypens Rubi and Feather pod devices. I am using juices from Five Pawns, which are 50/50 pg/vg. I used Mugi Cotton from the Coil Master kit. If nothing else, I am happy that I have had no leaks so far. So far I am not getting as much flavor as I do from those simple devices. It may be that I did not do the build optimally of course, but was wondering what people have found to be optimal watts for their Siren 2's. Also, what pre-heat settings you prefer would be helpful.