I am responding to Hal's answer to how often his bullet-spin broke- his justifying answer for throwing that kind of spiraling release was that it moved maybe 3 out of 4 times. I am absolutely amazed by that kind of thinking. We need to see what it takes to be a world class pitcher! At the " Open Division " level where I used to pitch for many years, if the ball went relativelly straight just one time in a game somebody in the infield might get killed with a line-drive! At this level of play, a top pitcher can't afford to throw any pitch that he does'nt have full control over with a very clear-cut idea of how much it is going to rise or drop so that he can locate it consistently etc.. Regardless of how one describes what happens to a spiraling type of pitch, the movement potential is too compromised to justify this spin emphasis. To maximize the effectiveness of a pitch, the spin axis needs to maximally cause the ball to predictably change planes in the eyes and mind of the pitcher and unpredictably in the eyes of the hitter! There are way too many " ramp " balls being pitched today!!
Mr. River, thank you for the "right on" response. I'd like to comment on batsics1 reference to a "bullet spin drop". Well there is no such thing. I am not sure if you ever pitched competitively, but contrary to what gets said on here, bullet spin does not cut the air in the direction of travel and therefore will not generally move. I have heard over and over again by different posters who have attended Bill Hillhouse's clinics. Many are ecstatic over his rise ball, and rightfully so. This is because these people have never really seen a pitch move. They have sat on their buckets and followed the path of the ball and are suggesting it moves. In the men's game all the good pitchers can move the ball or they don't last long. There are very few women pitchers that learn to move the ball because they accept bullet spins and other stuff as ball movement. Very few women can make a ball move like Cat Osterman, that is why she is the best.