The test strip on the left is SolarPlate on the smooth side of dry Masa. The strip on the right is ImagOn printed on damp Stonehenge. The ImagOn seems to hold a finer grain in the aquatint, but it is very contrasty, compared to the SolarPlate. This is a case where the Precision Digital Negatives approach should really shine. My guess is that it will recommend a really low UV density ink like red in order to control the contrast.