I just saw that Fuji has announced an upcoming firmware update in late November, and the Fuji X Raw converter will accept GFX raw files. It will be interesting to see the results. I have and use both C1 and Lightroom, and generally use C1 to process my Leica camera raw files, and LR to process my Fuji GFX raw files. I have tried the trick of converting GFX files to DNG so they can be read by C1, but I did not find it worth the hassle and the GFX raw files look quite nice to me in LR. However I may give it another shot and experiment a bit more.