Here's a video showing the J&S detecting (and controlling) knock that was missed by the Siemens ECU on a Mini-Cooper:
https://www.youtube.com/watch?v=tjA8xiPd3SU
This screen shot shows the J&S detecting knock with the water-methonal injection turned off. Note in the video when the water-meth is turned on, there are no detections, demonstrating the J&S was previously responding to real knock.
As far as I know, this was the first time a J&S was used on a Mini-Cooper. I sent them a unit, they installed it, and it worked better than the factory system with their thousands of hours tuning out knock phantoms.
Thinking is hard work.