I love the Nautilus 2, believe me it's flavour is on par with the Kayfun mini v3. I love that tank & I don't usually use RTAs! If you want a good mtl RTA an like a tight draw though the Kayfun lite is better. They are very pricey but if you don't build you'll know that stock coils get pricey. So you prefer the triton coils to the Nautilus?I just wanted to share some of my experience in case you were thinking of trying MTL with the Atlantis EVO.
My ADV is a Nautilus 2 w/ Triton mini 1.8 claptons. That said, when I drink, I sometimes reach for my Atlantis EVO w/ CCELL 0.9. However, the Atlantis EVO, even at the lowest acceptable airflow setting doesn't qualify for MTL vaping (I've tried sets of both stock coils, and 3 different CCELL types so far). It just doesn't work that way for me. For me, it's strictly a DTL. The flavor isn't what I expect and its far too airy (for MTL). But, I am 5'5" so my lungs could just be too small for it. If you've got a larger set of lungs it might work!
As a DTL when I'm drinking (using the same eliquid I use in the Nautilus 2) its both flavorful and performs very well for my needs. The stock coils were disappointing to me which was surprising considering they appear to be better from a design standpoint. Nonetheless, chasing that flavor dragon I quickly moved onto CCELL coils and I won't look back (I did two seperate rounds of sampling packs of the two stock coils separated by a few days and different eliquids). For TC the SS CCELLS are acceptable (better for me in VW for some reason - probably needs tweaking in Escribe), but for the best flavor I prefer the Kanthal CCELLS (and I mean flavor I can appreciate when I'm not drinking but more importantly for me, when I am drinking as well). This is from somone who prefers SS above all for my coil builds. It must be something about the coils physical layout, wrap spacing, or wicking material. I just haven't figured it out yet. I expected the SS CCELLS to be best for me before any testing. I prefer SS in TC mode because it allows me to more precisely dial in that perfect temperature for a particular eliquid of which I have far too many and swap far too often. But then again, I don't just chase that flavor dragon. I hunt that SOB like a starving mongrel.
Except when it comes to the Nautilus 2. This little SOB, somehow, just works great and highlights nuisances of flavor profiles in ways that I can only compare to my own kanthal coils and SS coils in TC mode (speaking strictly MTL). Apparently, I need to "up my game!"
I do love those 1.8 tritons. If you don't have the triton mini I'd definitely get it, it's easier to use for nautilus 2 filling wise but the n2 has better airflow.
The 2.0 I sub coils are good in the I sub apex too but problem is it's so hard to see where the tank is filled too.
Another good option is the smok spiral, it's direct lung with mtl options.
Also the ego one clr Rebuildable 1.0 coils are a dream. Just some options if you want decent mtl tanks/RTAs