Michael, just FYI, Crawley's early developers with iodide worked because the iodide adsorbed to the early bromide emulsions and then was released during development to cause edge effects. In modern, high iodide (up to 10%) emulsions, the Crawley developers have little or no effect.

I have been discussing this with Bill Troop. I am not sure he agrees but he was on board with a positive reaction last we discussed this.