Why get stuck on exhibition? Call it what you want, he appears to have run 626 balls.
Why not care about the details of the run? It's not like we are debating a 50 year old run it just happened not that long ago, shouldn't be so hard to get an answer.
If folks/John call it an exhibition and the pool hall wasn't open to the public, that's pretty lame.
It's a form of dishonesty like saying I ran 10 racks in a tournament, but leaving out the part the tournament was at my house and it was only me and my girlfriend playing.
Part of the selling point of this all was he did an exhibition, and broke Willie's exhibition run, cause he didn't beat Babe's run.