Thanks for the kind words, Paul.
Except for Dave, everybody used a looper of some sort for a lot of their stuff and minimal pre-recorded backing tracks or percussion sounds. Lots of layered, lush atmospherics with blistering solos on top. Michael used his ebow to great effect with haunting drones, whale calls, etc. Paul Hanson went from beautiful Oregon-inspired, Windam Hill-esque stuff to mind-blowing nods to Coltrane on top of Ariane's beautiful chordal work. Jean was extremely orchestral (easy to imagine with the huge range of that 11-string beast). But words do none of them justice and suggest going to their websites to hear for yourselves.
Luthiers Ralph Novak and Sheldon Dingwall are two of the most high profile fanned fret proponents for bass.