Quote Originally Posted by waltereegho
I guess the only real benefit of presoaking would be to control temperature, which is what I do it for. Plus it looks really cool when you pour out that green-blueish stuff.
Tempering the tank makes sense. My darkroom is about 60*F in the summer and 45*F in the winter, so I use a water bath for my stainless steel tank AND the chemicals to bring them all to temperature before I start the process.

Quote Originally Posted by waltereegho
Is there any other developer than Pyro with hardening properties? I really love Fomapan, but I've almost given up on it because of the scratches.
Caffenol. I know it's tanning, but not sure whether it hardens or not.