I managed to import FBX to PoserPro_11 at approx 11% of default.
The importer did not set correct textures, so model was ''black on black''. I had to open PMX version in PMX Editor, cross-match materials by name, manually allocate their textures in Poser''s ''Material Room''. ( I''m getting better at it !!)
After some lights adjustments, scene rendered quickly in Firefly using defaults, but getting Ninon''s dark details to show in Superfly required much coaxing plus an extended render.
