In the last few days I have started making some prints with Slavich Unibrom paper. My pack of 24x30cm grade 2 shows a clean white base with no apparent issues, however my pack of grade 3 paper does appear to show issues. I used both ID-14 and Fotospeed PD-5 developers. The above scan shows a variable mottling or fogging effect. I've altered the contrast curve on the scan to show the effect more clearly. This scan from another sheet of the Slavich Unibrom grade 3 paper without additional curve altering. This sheet shows a consistent grey mottling or fogging effect with some of the emulsion coating starting to remove itself from the paper base. This latter issue may be related to soaking time. Three causes might be: 1. light fogging of paper at some point, 2. coating / emulsion defect, 3. chemical issue in my darkroom. During the darkroom sessions I have used the Slavich paper in I also used ILFORD Galerie, Kentmere Bromide, Adox Variotone Premium etc. without the Slavich mottling. Tom.