I think John has had his camera rolling 100s and 100s of times trying to break the record and I highly doubt he is the only one
Every yr for decades the same question is asked you get the same answers and only one run has been close
1
You may be right.
There are anecdotes about Mosconi that say he could run 500+ balls without much effort. I can't find the source right now, but Charles Ursitti claimed Mosconi once ran 500+ balls in a practice room and shrugged it off as if it were nothing.