I'm not doubting they are there, but I understand sometimes they need time to move from the depths of the gallbladder to where they are accessible to flushing. That's my understanding in layman's terms. As for the coke - can it be replaced with an appropriate mixture of Potassium salts, Phosphoric and Citric acids? Since aspartame is one of the ingredients in the Coke that's the one thing I'd like to bypass. Another ingredient in Coke is caffeine but I do a coffee enema before flushing so that should take care of caffeine saturation if its indeed part of the success of this flush.