I saw Johnny play several times in his prime in the 1970's. He often ran with Jersey Red. Back then, he was splitting time between NY and Las Vegas. I didn't get to know him well until the last ten years of his life, when he lived exclusively in NY and played out of Amsterdam Billiard Club on the upper west side of Manhattan. If Neil was often with him, it's a safe bet that I know Neil, though I can't quite place him.
Johnny did not run a rack without hitting a rail with the cueball without a few tries, but he's the only guy I can ever think of that practiced it.
For someone who doesn't practice it and wants to run 43 balls as stated this way, unless they are a true superstar of the game, I still think it's worse than a 1000 to 1 proposition, so an even money bet for two tries is just a little out there.
There aren't many in the world who should take this bet even at 100 tries.