Whats with the silicone strip in the pictures? Never seen THAT...

Keep in mind, the airflow is tight, even fully open (no air insert/condensation plug not installed), and certainly not useless without. I mention this because of the other thread on this topic mentions this..while it may not suit the user, airflow-wise without MTL inserts, it is certainly a decent vape.

Though there are many better options than this almost 3 year old bridge.