Hi you guys...I may as well add my experience to the mix.
I've done 7 flushes and got out lots (70? of varying sizes) the first time....then progressively smaller amounts the next 3 times (down to 10)...then flush 5 & 6 produced nothing and 7 (months & months later) produced about 16.
My experience makes me believe that the stones are real and not formed during the flush because fewer and fewer were released and then twice I had no stones at all.
Also - I've never had the bright green stones that others have had! Mine have a golden-tan crust around dark-emerald insides...and they look EXACTLY like the photo linked below....with the stones inside the actual liver! That was the proof for me!
So...I really don't know why mine don't look like those jewel-y bright green ones but they don't...
Have you guys had stones that look like mine? Or have they always been bright green for you?