Now I'm going to challenge Dan. From observation of elite player matches and runs, more than from personal experience (because I'm not very good), it is my impression that there should not be a default or rule of thumb speed (three rails of travel or otherwise) at which to shoot the break shot. Who am I to question what Jim Rempe says (I'll answer that: a nobody), but again following what Fels says in Advanced Pool about straight pool break shots, controlling the cue ball is huge. So, depending on where the cue ball is going to contact the stack, and with what spin, if any, the ideal speed might be more or less. True, you almost always have to hit the shot with a minimum amount of mustard (no babying it), but after that, it is an art, I think -- or at least an artsy science. Sometimes hitting it a little harder rather than a little softer can have the effect of simply causing balls that had initially spread out from the rack area to rebound harder off the cushions and find their way right back home. Just a few thoughts, not answers.