Hey, I was in the same boat as you kirschm...not long ago. Got the Nautilus 2 and loved it, but no matter what juice I used, day 1 was great, day 2 PERFECT, day 3 fine, and day 4 really started the downhill slide. It wasn't so much a burnt taste, but just couldn't get flavor/TH any more, so I'd change coils. And I was vaping only 2 ml a day of Tribeca, about 200 hits per day. Having quit smoking (45 years), I really, really, needed a good hit. And the harder I'd hit, the worse it got. So I got real tired of blowing through a $15 5 pack of coils so quick, and playing the games (can I get one more day out of this one?). So I broke down and bought a couple of Kayfun mini v3 clones, some cotton ($4), wire($4), all for about $35. Should be able to build about 250 coils for less than $10. And even better, the coils last longer. Pull apart one of the Nautilus BVC coils, and you can see why - the coil itself is tiny, and the cotton is very compressed. Run any amount of juice thru it, and the carbon will build up on that tiny coil in a hurry. Probably the best factory coil on the market as I hear it, but.....Anyway, if you have any "tinkering skills" it's worth a try. It's kept me off of smokes for over 4 months now, and I only crave the juice, rather than a cig. Good luck!