After more than a year with my blucon doing its thang in good style, I was throwing hissy fits when MM was doing that checksum=false gig on the second sensor, along the lines of why have I bought some junk from a Communist country, it's trying to steal my bank details, let's start World War Three just to put those commy b******s in their place.
Then I realised, oh, it's not close enough to the sensor. Cancel that war, Donald.
The Air Gap is a great title for a sci-movie. I can see some sort of Matrix style movie with T1s displaying "attitude" and maybe some Glocks just because our cgm isn't working that well...