One thing that is missing from this debate on push out is that after the push the incoming player could take the shot and play safe. This was often a strategy as well and possibly the real reason the game needed to be "speeded" up for tournament/television play.
There was a lot of art to the push but the incoming player was faced with three choices.
1. Take the shot to the pocket.
2. Play a safety
3. Give the shot back.
Now, as to shot making, there is now a lot of shotmaking in the game, probably MORE than when two-foul was in existence.
Why?
Because a lot of the time the best shot is to go for the shot rather than to attempt a difficult safety. By now all the top players know the moves just like one pocket so simply putting distance or leaving easy kicks isn't a guarantee that they will get another shot. Plus with the jump cue that cuts down the effectiveness of the safeties and requires players to try to lock down the cueball on safeties.
Thus players faced with the prospect of playing a difficult safety will often go for the shot which results in some spectacular shots.
I like two-foul nine ball, it's what I grew up on. But let's be real, it could be a mind-numbing push/safety battle as well. You push, I play safe, you push again, I play safe again, you push............
Good post, John. Your explanation makes it easy for a railbird like me to understand.

BTW, adhering a little to the topic of the thread, I don't think Keith has ever been in an extensive safety battle in his life. He goes for shots that make me literally cringe. :angry:
I have been told that he's a "rhythm shooter," meaning he likes to shoot pool to a beat, I guess, but Keith's beat is just too doggone fast. I had often wish he'd slow down and take time to think about a difficult shot, like Nick Varner does. :wink:
But with Keith, even when encountering the most difficult of shots, it's like "fire in the hole" or "all pockets stand by."

Maybe some players are boring to watch with their safety play in two-shot/push-out, but I will guarantee you there will be no down time when McCready is in the pit. He'll keep you on the edge of your seat.
