I just did my first ever flush today, and passed some good stones! About 150 with about 5 big ones. Out of curiousty, I cut the biggest one in half and found that it was PURE dark green inside. Then the same with the others too. Is this normal?
(I've been scrounging on the web too, testing the waters to see if this was just an olive oil concoction or whatever...you know them skeptics!)