I built a coil for my Russian 91%. It came out to 1.2 ohms. I didn't really care for that. Too warm of a vape for me. I didn't have any problems with leaking with that. I rebuilt the coil to 1.6 ohms and I'm having problems with liquid leaking from the air hole. Any ideas to why this is happening? I vaped on it for a couple of hours before it started.