I'm not new to RBA's or wrapping and making my own wicks..... I run a single 400 mesh 4 wrap 30g at 1.07ohms and it fires PERFECT.... Vaped all night on it and had no battery issues.... And in an email I received from them I was told this:
Personal opinion, 18350 does not have the power to break the tube of the silverback, maybe thats why potv didnt put a vent hole. but that is just me