Yeah, tuning the damper is a super difficult problem. There are a ton of modes and they change constantly based on the shape and speed of the print.
There is already a spectrum analysis tool built in to the printer in the form of the input-shaping xy sweeps. It would be nice if that data was available to the user instead of being opaque. Maybe we can lobby Bambu Lab to display the results of the calibration with a graph of the spectrum and the major resonant modes identified. Would be a great way to test different materials and furniture.