The rules they discussed were the same rules I grew up with, which I assume are the same rules most Filipinos in the PI know.
There is no BIH in these rules and never have been in any form of Rotation afaik.
Hitting the lowest ball first is the only criteria. "Failure to drive to a rail" is not a foul. I was glad to hear Efren say this because until I played 9-ball, I never heard of a "failure to drive to a cushion" foul! Course, that was a zillion years ago.
There was an inference that only on a kick shot didn't require to drive a ball to a rail. We never played any shot had to be driven to a rail. I don't know if it will play out that a straight non-kick that doesn't contact a cushion (some cozy up snooker-style touch or similar) ever comes up. When I was little, "strategy" had no bearing on my game.
Spot up rules are in effect. Failure to hit the lowest ball gives the incoming player the option to spot up and shoot from the kitchen. Ditto for incoming after a pocketed cue ball and the object ball is in the kitchen.
Right now, I'm in a bit of time warp. I love it.
Freddie <~~~ who knew those rules would be exciting at all?