Hey, if you have M50 or M54 working knock sensor, can you share your settings and log file of pull, I want to confirm that there is no problem with engine or just need decrease sensitivity. Weird that there is Hauge differences between cylinders.
My build fully forged m50b32, having noisy knocks signals with low and high frequency and 3 degree timing.
Shielded wiring
New bosch sensors
my setting
High freq.
Here is low freq. just revving engine