Since 1993, JP Longball has reverberated with the cracks and pings of bats. Located near the University of San Diego, the indoor batting center features five batting cages?including one with a dirt batting surface, three that throw baseball and fast pitch softball, and one that throws baseball and slow pitch softball. Arm-action pitching machines test baseball and softball players with different speeds, and a curveball machine bends balls over the plate without relying on whispered incantations from Randy Johnson. Not all of JP Longball's staff is mechanized, however. The facility also retains an all-star lineup of accomplished coaches, who share their wisdom with ballplayers during personalized hitting, pitching, and fielding lessons.