I may have nothing to gain in a real sense but I enjoy experimenting, both for its own sake and to see what happens.Originally Posted byjdef

Pyrocat-HD is a very good formula but there are some things I would like to improve. For example, with minimal and semi-stand development it gives very enhanced adjacency effects and outstanding apparent sharpness. I would actually like to be able to get those qualities in a staining developer using rotary processing so that is one of the avenues I will look at with Pyrocat. One of my previous goals was to adjust it so that the stock solutions would be as stable as those of PMK. Well, thanks to Pat Gainer I now already know how to do that.

I can appreciate the advantages of a single solution developer. In theory it should be faster and simpler to mix a working solution from a one stock solution than from a two stock formula. Unfortunately the viscosity of TEA in my own experiments worked against that simplicity because in order to measure it accurately I have found it necessary to heat the solution. By the time I have finished doing that I could have already easily mixed the working solution from a two part formula with Stock A in glycol. So in practice I have found that it takes more time to mix a working solution from the one part TEA solution than with the two part formulas.I could store the TEA solution at a higher temperature to reduce viscosity of course, but that brings with it some complications as well.

Sandy