I put dual coils with 20gauge, 6wraps around 2mm. It's a real warm vape but I went and got a drip tip from 3rdeyetips on eBay, they put out some nice custom drip tips made out of acrylic so you won't burn your lip!!! It fits real tight but covers the top AFC holes a little bit. They are out of Texas and no two tips are alike. Highly recommend checking them out. Although the matching project sub ohm you have on yours makes me wanna drop the coin on one!!! Glad to see you back here, check out the diy juice section, there are some killer recipes if you ever wanna make your own!!!