Quoted from delt31:Does it just provide a better way to see balls that remain?
It sounds like it's just changing the way extra balls are played. Instead of them being immediately after current ball, they're shoved to the end of the regular 3-ball game. That way, if you have a 4p game and P1 has 3 extra balls and nobody else has any, players 2 3 and 4 don't have to sit there bored to tears waiting on this one guy to play 3 extra balls, he just gets them after player 4 finishes their last ball.