The Veritas is ok... and the airflow can be shut pretty tightly, just leaving a *sliver* of the airhole showing. It can be used for either single or dual coils, either horizontal or vertical coils, but the design lends itself beautifully to vertical coils, even single-vertical. The well is pretty deep, and I'm told that it takes a lot to make it leak.
All that said, I think the flavor and tight draw is better in the Magma, and it has a deep well too, but... if you fill it too full, like over half, it *will* leak. The AFC ring spins around too easily, unless you put a spare o-ring under it; then, it stays put very nicely even when screwing/unscrewing the top cap.
I'm planning on trying that Achilles myself very soon.
Andria