Hi Ella, I have tried short fasts on Braggs ACV and raw honey drink. I did not do very well on it. While most of the reactions were probably from detoxing; I also developed severe stomach pains. You probably could do three days on ACV leading up to a Liver Flush though.
I am on day 2 of my third Master Cleanse. I am also doing a parasite cleanse, so I was concerned about too much Maple syrup feeding the bugs I'm trying to kill. Right now I have cut the amount of syrup by 1/3. So far so good, but if I get too weak, I may have to do some other form of diet during the cleanse. The point is, we have to listen to our bodies. If you try ACV, be aware that some problems might arise, other than that it sounds like you are well educated and can follow your instincts. Good luck.