You wrote "I believe it definitely comes from the liver but I think that the thick bile that exits the gall bladder during the flush congeals and forms into those large lumps when it rolls around in the intestines which are filled with epson salts."
People have the same results when they flush using slow method without Epsom Salts , oleg_yogin for example. I am sure that all those stones come from gall bladder and liver. I could feel my biggest ones rolling out through liver ducts with a little pain.
I told it already to several people, but will tell you also. You can not get clear picture of what is really in your liver and gallbladder util you make at least three flushes with two weeks intervals. LIver has several segments (3 or four)and each of them empties one by one during the flushes. So what happens when you do your first flushes with years intervals: One segment get cleaned and new stones start forming there during those years that you don't flush. Then you flush the same segment again... So all the old stones from other segments don't have any chance to leave your body.