What are your guiding principles in designing the developer? In other words what are you trying for when you say HA? Low solvent action? Maximum edge effects? What characteristics or components of image definition/information are you favouring? How will R G Mowrey determine if he is successful in generating "high acutance"?

Is Holmburgers helping you with this?

And how do I get access to this microdensitometer

For the Henry tests I will put together a summary rather than lifting a page via scan.

I'm also attaching my summary of the Altman/Henn study again (was discussed in another thread some months ago).