I will have to say that my "error" Igo L is spanking every other L I have. That air hole, as screwed up as it may look, is just hammering the vapor and flavor out. Not sure why this is. Maybe it is just the correct size air hole (Even though it is partially blocked by the deck), the coil is perfectly lined up with the air hole, or the coil is built just right, who knows I just know this thing is ripping big clouds with the slightest of pulls. I shall call this one my: Hawkmod