Anyone here using Aeroforce gauges to monitor knock? I've been using the gauge to monitor knock while playing with octane levels and E30. I'm seeing 0.50 degrees knock retard once in a while and the Learned Knock Correction (OAR) is staying at -1, so I feel very safe. I don't know what this third parameter is - KNOCK SENS 1. It goes from about 7 to 700 units going up with engine RPM. Anyone know what is means?