*Charlie, then what's your take on the one member in our club who correctly knew when the clock was in or out of the system?*
He guessed very well. In any group there is always one person who through gifted insight or dumb luck (much more likely) to guess (not predict as that is based on fact)more accurately than the rest. It's simply a matter of probability and statistics.
There is no proof, logic, or empirical data to support any evidence that this product works. The manufacturer has been dancing around an explanation for this and "silly pebbles" for a while now.