I am just curious, have any of you spotted with Sumi Ink? QUOTE]
I mix my own spotting liquid to match the paper or tone using the following transparent Marshal Photo Retouch Colors: Basic Black, Basic Grey and Bright Orange. I assume that since you are using Sumi Ink that you may wish “warm-up” the ink – so, use a mixture of Bright Orange and water. I did not invent this approach, John Sexton did. If anyone wants the chart I made up, I’ll post it.