/3/ - 3DCG

Can anyone help me with PBR inputs in daz?

For example, I take a sbsar file from substance source, put it into B2M, it gives me all the outputs I could need, diff, metallic, gloss, roughness, normal, spec, ao, etc etc

In daz, after applying the iray uber base shader and selecting PBR, theres like 5 different glossy/rougness related inputs, i can't for the life of me figure out which ones I should put in, I play around by trial and error but none of them turn out quite as the material should look, and I was under the impression the whole point of PBR is a material that should keep its look regardless of lighting, for the most part.
heres a mummy