No, just your broad ranging knowledge on photomaterials, color and photography gave me the idea that you may have some thoughts on this matter. That is all. I have no evidence either way except your posts.
North America just north of that sharp right turn North America makes on the Atlantic coast.
Congratulations! Keep up the good work, I would offer to help you, but I have no clue after basic chemistry.
"Would you like it if someone that painted in oils told you that you were not making portraits because you were using a camera?"
"Shouldn't it be more about the joy of producing and viewing the photo than what you paid for the camera?"
Here is the image that I got of the Stouffer step wedge. After scanning in the image I could clearly see both a negative yellow brown image and a positive dye image. I tried treating the brown area today and could do nothing to remove it.
The blemishes are due to the acid causing the gelatin to swell in a bubble and then burst. The spots appear to be due to dye washing out or being retained in some of the areas.
I can play with this in PS and get just about any enhancement to show more detail, better color, or even the dual neg-pos images, but this is the raw data.
As the title says, "don't laugh". Because then I would ask you to try it and see how you did on your first attempt!