The only foreign slurry I ever tried was using a synth slurry (6k King if I recall. It's been a while.) on an ark and diluting it out in an effort to find a way to speed up the ark. I was still relatively new to the Arks and decided that I didn't fully understand the stones themselves yet and couldn't quantify the effects.
I'm glad I read this post though because it is good food for thought and something to revisit.