I know this is a ways off as you are getting the standard features up and running on the new hardware.
Anyway, I was wondering if you could add a residual distortion plot to the Time Display. This would be in addition to the input waveform. So we can compare the phase of the input to the residual waveform. Nelson Pass references this on a regular basis for adjusting amplifier distortion profiles. It’s old school, like on an analog distortion analyzer.
If others are interested please let Matt know here