What exactly do you mean fails to conform? Is it conforming but showing pokethroughs? Did you verify that it conformed? Did you try DSON Importer Transfer Active Morphs from the script? Drag & drop? Did you load G2F from an actual CR2 from the Library or through DSON Importer?

I just loaded a Poser saved Aiko 6 into a Poser 11 Pro scene and applied a G2F clothing through DSON Importer and guess what? It doesn't conform properly. I loaded Aiko 6 through DSON Importer and was able to properly conform the same item of clothing.