I'm too tiny to have *thousands* of stones in my belly!!! LOL!
the number of flushes required can be SOO different... Basically, I think it's important for newbies to do at least 4 flushes in a single series of flushes, then wait six months and do another 4. After that, one or two a year should suffice.
Now if you're still symptomatic then definitely do more, but I think after a certain point, treating the liver with diet and stone-dissolving agents and herbs is more important. If you continually create stones there's something wrong that needs to be addressed. Stop skipping breakfast, stop the low-fat diet, stop the bad fats and flour... that kind of thing.