I have developed this in Rodinal, D76, and more receintly PMK without trouble. Maybe try a fixer with hardener as the emulsion is supposed to be very soft. I use Kodak fixer with hardener and have never had a problem with the emultion scratching or flaking off. It still stains fine with PMK even without the post soak, infact I think my Efke 25 negitives look and print better after I stopped using TF-4 and post soaking in spent developer, but that is just my subjective opinion, your results may differ.
Hope that helps.