Hey Cymbop what about replacing the "fifty cent" outlet with...
PS AUDIO - POWER PORT-or-Shunyata SR-Z1-or-better yet TESLA Plex SE. At least you should have a vice-like grip, with much better contact for Pangea feeding into PS Audio Plant. Just saying.
Well everybody that is a audiophile follows specific instruments or voices. For me it's the Yellowjackets music and recordings (try Blue Hats or MInt Jam) a bit more dynamic. I follow patterns from musical instruments presenting microdetails and dynamics from drums, bass and piano. Percussion using rain stick, congas or xylophone can present very different sounds in the midrange area.
Congrats on the Zus. Do you have the SVS12s set lower to 34Hz or higher? One more thing...did you consider SVS13 subs before buying the SVS12s?