I surrendered and tried this technique, well, sort of. I didn't follow the recipe exactly, used mostly inks to get the colors. I was mostly interested in seeing how the black oil paint + liquid clay worked. Very interesting. My slices didn't have the authentic-looking abalone patterns that Lori got. I'm terrible at slicing anyway, must be my dull blades.
Anyway, despite the messiness of applying the paint, I like the way it made a very thin black line. It has potential for other uses. I was looking at something towards the back of D. Kato's book and found she uses Genesis heat-set paints in red/orange/magenta (love!). Might be something to try.
I ended up rolling the above into beads. Not my colors at all, but not bad. Still, they cry out for some translucence.