Well, I tried a 0.4 EVO coil in the Melo III. First thing, it seemed to screw in kind of roughly. I'm not sure if I didn't get it in quite straight or what. I'm going to take a better look when I get low on juice. It's not leaking or anything, so I guess it's in there. I do think it's somewhat better than the eleaf coils that I have tried in the Melo, but it's definitely muted compared to the Atlantis EVO. While I'd say the Melo is usable, the EVO is the clear winner in my book.
Ah good to know and that makes sense I'd say. As for the threading, I'm going to guess Eleaf doesn't machine quite like Aspire. Not just because of what you said, but because yesterday I installed the Eleaf EC Notch in the EVO and though it does fit and work, the base nor cap thread as smoothly as with the Aspire coils. I hope I didn't screw up my EVO threads, but I really don't think I did. As for the Notch flavor, it's damn good, I'd say on par with the Triton Clapton or maybe better, but not as good as either of the two EVO coils. Then again, it's good enough that if the Notch lasted a really long time without muting flavors, it would be a winner. I doubt that's the case, but I'll report back in a couple weeks.
Speaking of the Triton Clapton, I LOVED that coil when it first came out. It was the closest I had gotten with a pre-made coil to dripping. Then I fell in love with the Cleito. Like I originally said, the EVO coils are on par with the Cleito in flavor. In fact, I think I prefer the flavor of the EVO coils. So in addition to installing an EC Notch coil, I installed a Triton Clapton as well. I was actually surprised by how muted the flavor was compared to the EVO coils. Considering what I thought of the Cleito coil after using the Triton coil, I guess I should have expected it, but I didn't.
Both the EC and the Triton have airflow similar to the .5 EVO, which I did expect. Neither are as open and the .4 EVO or the Cleito. Anyway, as of now, I'm preferring both EVO coils to these two. In a few weeks, I may try a Vaporesso cCell in the EVO, just so I can report if it really works or not since I have some laying around and many people like them.