I picked up the liquid Pyrocat HD kit from Photo Formulary to give that a try, but I am not sure about the fix issue. I read on their instructions that it needs to be an alkaline fix and they give non-hardening rapid fix as an example. We use exactly that in our darkroom, but I am a little nervous since it seems that every reference here is about using a different, more esoteric if you will, fixer. It would be great if I didn't need to get a special fixer to use the developer. In fact, if I need to, I might just not even try it. What have people found when using a standard non-hardening rapid fixer? Thanks! Paul.