Speaking about the Modern and Vintage modes... I did a phase cancellation test about two years ago to determine if the "Modern" and "Vintage" EQ modes were identical, and just listening to them told me they were.
The phase reverse test proved that there is absolutely no difference in the sound quality of either the "Modern" or "Vintage" EQ modes.
Originally, Mackie advertised this as a "NEW" Vintage sounding EQ, when in fact it was just a different graphic user interface for the same processing.
I do realize that people who are not experienced audio engineers would much prefer knobs instead of the "Modern" GUI, and so for that, I think it is a great idea to offer both.
I am also pleased that in one of the videos I watched about the DL32R and v3.0 it is stated that the two options provide different ways to control the EQ.
That is the honest thing to do, and I am proud of Mackie for not giving misleading information about the product.