I never use Superfly because it is just way too complex to produce good results, and I buy product frequently. You can make PBR textures that work fine in Firefly/3Delight. Deacon215, for example, sells clothes for DS with iRay textures that render fine outside of iRay and in Firefly when I re-rig them to work with Poser figures. Here is a G3 hair piece that I rigged for V4, here parented to my Heroine Paulette freebie for Pauline. This is an iRay texture on the hair. This is a quickie render.