Hello, I’ve been in trouble with my serpent smm tank since I bought it. It’s either leaking or giving light dry hits after a few consecutive buffs. I was able to make a coil that does not leak but still getting this light dry hits usually appearing at the 3rd or 4th buff. I have tried multiple wecks and builds with no luck so far and even went to several vape stores and friends who used it before but still the same. I’m using a Vaperosso Revenger mod with a coil resistance of 0.39 ohm. Any suggestions?