Kookie, I just looked into the Artemas tanks because I have never worked with them. I see their cartos and threads are similar to our 808Ds so you shouldn't have an issue. My only concern would be airflow since our cartos may have different airhole placements.
Our tanks can be tricky at times but once you find a good rhythm they can be a great vape.
Ah, yes that actually didn't occur to me. You're right. I was just thinking about fit. There is that grove on the bottom of the cart to allow air to go through the little holes beneath the battery threads. That Artemas tank sleeve would cover that grove on the bottom of the cart. Maybe slotting that sleeve or drilling some small holes may work for air flow without compromising the function of that sleeve, to keep the tank from sliding up the cart.
I really like the design of the Artemas. I just hope there can still be good battery connection with the sleeve installed below the cart flange. I think the air flow can possibly be solved. I'm not sure without it in hand. It may be worth the try to me. What 8/9 bucks? (I would have to find my pin vise and my tiny drill bits if indeed it needed to be modded to work.)
You know a part of that idea should be incorporated in the V4L tanks since the V4L carts have those flats on the flange. You could get a tighter battery connection since there is not much to grab of the cart when screwing on the cart with the tank on it. You know what I mean?