Hi...isn't that weird?? Stones with only ES? (crazy things like that DO happen - so called 'accidental' flushes)
No, the adjustment in timing wouldn't have resulted in a no stone flush. Depends on how much 'half' of the OO/GF drink was? Half of half a cup of OO? That may have not been enough 'fat' to get the liver to release a bunch of bile (and stones).