Daz characters are'bt really Poser figures.  Daz(Zygote) used to make the figures that come with poser, but do'nt anymore.  SInce they stopped, the technology that strips the morph data out of a figure, and puts it aside into the .PMD file, has been added, but morph technology is very sensitive, and just as two morphs of different figures wo'nt transfer it would follow to expect that stripping/rehashing would also have required some kind of colaboration between Poser and Daz' developers.