RickO - I bought the CP FA AA set as well but with the Super Bass B unit (1933519) also, and IMO the sound of it is outstanding! (Unfortunately I'm not equipped to provide a video.)
I noticed that Eric Siegel (aka Eric's Trains) in Episode 77 was shown picking up this ABA set at Legacy Station Hobby Shop and I've been waiting for him to do a video review of it but - to date - haven't seen one yet.
In the meantime I've seen a YouTube video of a chap who's got a SF FA ABBA set (I think it was one of the special runs that Nicholas Smith Trains sold) which you could google to see it run.
Good Luck!