By wicking holes/tangs I assume you mean where the atomizer connects to that castle tower looking bit? If that's the case they are covered, I'll give it a turn.
Other than that I've been messing around and I think my initial problem was running on a low charge.
Now I think it's mostly just a matter of preference.
With the largest air hole open and running at 28 watts I get a massive hit with a decent cloud to follow. A few hits then almost has me buzzed off the nicotine. I quit smoking when I switched to vaping several months ago and use 24 MG juice. I'm sure switching to a lower nic level would solve this. But I'm wondering if the atlantis' s small tank and significant increase to battery usage is even worth it to me for the minor increase in flavor and vapor.
I think I'll get some low nic juice and keep this around the house for when I feel like becoming a human fog machine. As far as an everyday alternative to cigarettes though, I'll stick with the nautilus.
IMHO 24 mg is too high to sub ohm as it will definitely mute the flavor. I just recently reduced my nic from 18 to 12 an noticed a huge increase in flavor. YMMV.