I got the nautilus about two weeks ago, and for the first two or three days it was great. No bubbling, no dry hits, no leaking. Perfect. After that it's been all downhill. Started bubbling on day three, I realized if I used a bigger air hole it didn't bubble anymore. That worked for about a week. After that, I've been getting consistent dry hits, even on using a fresh coil. I let it sit for five to ten minutes every time I install a new coil, and the first hit and every hit after is always burnt. I'm vaping on 3.3 Watts. I've tried using all the air holes on a fresh coil and it's always burnt. Did I just get a bad pack of replacement coils or am I doing something wrong?