Baseball players place a tremendous amount of stress on their arms and the ligaments which control how the arms and shoulders move. By practicing pitching drills which focus on developing and loosening these muscles athletes will be taking a step to avoid costly injuries. By adding core work into the pitching drill athletes will further protect their bodies by building a strong base at the center of their body.
There are several versions of the Slider, but we will illustrate the cut-fastball version (aka a “Cutter”) because it’s the easiest for most people to learn and throw. The Cutter is gripped similarly to a Two-Seam Fastball (index or middle finger along the Blitzball seam), except the two fingers should be closer together and the ball should be held with an off-center grip (towards the outside half of the ball).
Cut an old bed sheet (or similar material) into pieces 18" by 5". Fold the long side a few times until the cloth is 1" by 18". Form 2 lines, with one line of pitchers down on one knee, resting "glove side" elbow on other knee. Hold arm out (the one resting on knee) parallel to ground (with glove on) no higher than 18" above the ground. Players standing, hold out throwing hand (palm up), draping the folded cloth over their middle finger, and letting it hang down evenly on each side of their middle finger. Loosely holding the cloth in their fist, have pitchers go through normal windups, with the delivery being, slapping their partner's glove with cloth. Check for proper motion, balance and defensive position.
The difficulty with this pitch isn't from the pitch itself. In fact, most pitchers feel this grip gives them the most rotation – and most movement – of any breaking pitch. However, many pitchers who are learning this pitch for the first time, aren't comfortable with the "tucking" part. It's not super comfortable at first to tuck your index finger into the baseball.
Pitchers and catchers stand at regulation distance from each other. The catcher stands behind home plate, and a batter stands in the batter's box. The batter should alternate between a left-and right-handed batting stance after five pitches, but not take any swings. The catcher calls balls and strikes. Have the batter wear a helmet in this practice session.
In this video I answer some questions about the King of the Hill Pitcher’s Trainer, one of which was “what type of pitching drills can you do on the King of the Hill?”. If you like the King of the Hill, and I definitely suggest this product for pitchers of all ages, then you can check it out at King of the Hill. I really love this product because it teaches pitchers how to properly and efficiently get the most energy out of their legs.