Ok, so here is my aforementioned test with a print from a cyan tissue.
It's a comedy of errors, but in my own opinion it has a certain degenerate beauty about it. As you can see, the stain is very apparent, and has been steadily growing since the "time of conception". It was completely non-existent at first.
This negative (which is a bit smaller than 8x10") is from a reversal processed 4x5" positive that I projected onto Agfa Mammography X-ray film. The negative itself is not perfect, and yet the tonality of this print is nonetheless promising.
It's such a thrill to have these materials, and I promise this won't be the last image I make with them! Though it might be some time until I get to 3-color, as I need to commit some more effort towards my dye-transfer process.