This is a last minute decision so you might have to change your surgery so you can do enough research. I did it the other way around told my surgeon 10 years ago that I would call back to make an appointment for the surgery.
Also post this on the liverflush support forum.
I had a 25mm stone
stuck in the gallbladder neck. thickened wall 42mm and inflammation. After 10 months flushing: stone free floating, wall back to normal 3mm and inflammation gone.
I have still the stone but I live with it. When it acts up
a couple of times a year I have a glass with warm water and 1 tbs Epsom Salts (magnesium sulfate) and the pain goes
away in 15-20 minutes.
If you cancel your surgery don't make another appointment but say you will call back. Doctors are not happy with cancellations.