I think it's a little more fair in APA because even though the 8 on the break is a win, you also must take what you make. In BCAPL where the 8 doesn't count, you have choice anyway.
I think, for most professionals and high-caliber amateurs, when choice is available after the break, the sole object is to make ANY ball on the break and just run-out. I don't know if going for the 8 offers much of a statistical edge because you're also getting a weaker spread on the rack by hitting the second row. If you're breaking & running 25% of the time, you're not going to improve your odds of winning by much by going for the 8.
With that said, I think 8-ball should always be played-out. The early 9 in 9-ball makes sense because any combination on the 9 is a win, why should the break be different? In 8-ball, all early 8s are a loss so why should it now be a win? As well, the 8 on the break (when hitting the 2nd row) is arguably as much as 3x easier than making the 9 on the break. What makes it even uglier is how the 8 predictably heads toward the same pocket and with genuine speed. In 9, any movement on the 9ball is often the fault of the racker. In 8, you have 8s dropping on perfectly tight racks and there's no stopping it. I have yet to see more than 3 in a row but it wouldn't surprise me at all.
I think, for most professionals and high-caliber amateurs, when choice is available after the break, the sole object is to make ANY ball on the break and just run-out. I don't know if going for the 8 offers much of a statistical edge because you're also getting a weaker spread on the rack by hitting the second row. If you're breaking & running 25% of the time, you're not going to improve your odds of winning by much by going for the 8.
With that said, I think 8-ball should always be played-out. The early 9 in 9-ball makes sense because any combination on the 9 is a win, why should the break be different? In 8-ball, all early 8s are a loss so why should it now be a win? As well, the 8 on the break (when hitting the 2nd row) is arguably as much as 3x easier than making the 9 on the break. What makes it even uglier is how the 8 predictably heads toward the same pocket and with genuine speed. In 9, any movement on the 9ball is often the fault of the racker. In 8, you have 8s dropping on perfectly tight racks and there's no stopping it. I have yet to see more than 3 in a row but it wouldn't surprise me at all.