I didn't get any stones on my first flush, just foam.
I did the Andreas Moritz flush, using the Gold Coin Grass (GCG)tincture for 9 days prior to the 1st flush to soften and breakup the stones. Apparently my liver was too congested to release much with only 9 days of GCG. I took it for 21 days before my 2nd flush and released about of cup of stones, some were 1.5 inches in diameter.
I'll start taking the GCG on the full moon and do my 3rd flush on Feb 5th. That will be 12 days of the tincture before the flush. I'll post my results a few days after the flush. I noticed that I was expelling stones in the toilet for 3 days after the 2nd flush.