It's been my experience that to make a ball on the break, you have to intentionally try to hit the first and second ball simultaneously with lots of inside english. This will of course vary with playing conditions. This break is more susceptible to selling out and scratching- it takes an almost perfect hit that is hard to consistently reproduce and players often miss the first ball completely and lose the advantage the break gives. If the rack is tight and the corner ball is not coming out, break from close to the side rail if you have an accurate stroke and try to put the rack between the cue ball and any balls near your hole. This is the break I've seen 99% of the pros I've watched use. Breaking from near the side rail puts more energy into the rack but requires a better hit; move towards the center of the table to reduce your chances of selling out. Grady believes most of the other breaks are too weak to defeat top notch competition. Save your money and buy Eddie Robins' one pocket books for a more complete treatment of break.