I had an old oversized oring from something, that happens to be the same size as the airflow cutout.
On the inside of the airflow I mean, so I cut 2 small peice and plugged 1 hole on each side. I imagine almost anything could block it from the inside cutout. I like the oring because mine is black and you dont know it's there if you dont look closely.
The regular nord started to leak slightly on me. Has to be the plastic pods. Same coils in the aio have been bone dry. Well the 2 I have used so far anyway.
Oh that's clever! Didn't even think of that. And yeah I think the plastic pod is just no good, because I had problems with mine too, but I had a bunch of coils stocked up so I figured I'd give the AIO a try.