Now that makes perfect sense!Maybe... makes sense to continue producing the 1.5 ohm coils, though. The GS Air is a 16mm tank and lots of 16mm batteries folks are using it on might not be able to consistently fire down to 1.2 ohms. I'd guess the 1.2 ohm coils are taking front-and-center position with higher production numbers and that the original coils will continue on for a while for compatibility with more batteries... Again, kind of an out-of-the-air theory.