You wrote:
>How are you mixing your chemistries and what rules of thumb do you use
>to control contrast with the metals?
I play the game the same way as I do when splitting the grades with Multigrade.
For highlight detail more palladium, and for shadows more platinum.
I would never use as great a proportion of platinum as fifty per cent.
I also make a habit of pushing things beyond what any sensible person would
consider reasonable to see what happens. One learns
a lot that way.
I hope that is succinct enough for Stephen.
Terry King