Honestly, the old firefly materials in Poser need a complete overhaul.  There have been corrections and repairs done to many nodes over the different Poser versions, and the implementation of FF shaders has changed, thanks to Bagginsbill.  I do agree that there should be more Superfly-centric materials, but which format would users be comfortable using in their scenes: PoserSurface, PhysicalSurface, or Cycles?