So not sure what the best cartos are. I love my dctv2 and use that for my all day vape but looking for others for flavors I don't vape all the time. Still new to this (26 days) and learning what's best. Should I get single or dual coil? I have two KGO sets (paronoid about backups) and a e-power 18650 (thanks tropical vapors). I've ruined a couple getting a burnt taste....want to make sure I order the right ohms and coils for what I have... Any advice would be appreciated cause I want to put in a bulk order. Thanks!!!