I'm at my wits end with this tank. When it works, it's great. But 75% of the time, when I change out the coil, I let it sit for an hour and ALL the juice will leak out. So I take it apart, clean it all up, reassemble, and sometimes it holds, but sometimes it all leaks out again. I'm tightening everything. I'm not new to vaping. I've owned 15+ different tanks. I'm mechanically inclined. It's so frustrating! I know so many people are happy with their Cloud Beast. But I'm having terrible luck with it leaking. Eventually, I'll take it apart, put it back together and it doesn't leak. But often before that, I've lost $10 worth of liquid down the drain. I know it's leaking from the bottom because ALL the juice leaks out of the air flow holes. It's happened with the T8 and the X4 coils. I know I'm missing something. It's the craziest thing. Put it together, tighten everything, leaks. Take it apart, rinse everything, put it together the exact same way, no leaks until the coil needs replaced. OR, put it together, leaks again, take it apart, put it together AGAIN, and it holds until next coil change. I'm ready to give up on it.