Effective Velocity is a concept made popular by Perry Husband, author of Filthy. Downright Filthy Pitching began as a very in-depth study of speed related to the hitter's reaction time. 10 years of research and testing of amateur hitters plus two years of intense study of major league at bats in a 4-million-pitch database have lead to some astonishing findings. It was a time-based study - statistics directly related to how well timed the hitter is to the pitch.

The Effective Velocity reports below are really 9 reports in 1! The Pitcher EV Report offers a way for pitchers to find out how well they keep pitches out of hitter's "attention zones". The Hitter EV Report reveals everything about a pitcher's location and velocity tendencies in one glance.

• Palm pilot sold separately. Zire 72, Sony Clie TJ27 or palmOne Tungsten E required to operate PalmScout ~$200
• All packages include 1 year of free support.
• PalmScout license is for 1 PDA and 1 PC.