these are bone crusher52's slider description from OS.
User Pitch Meter Difficulty: + for an easier pitching meter (bigger green Perfect area), - for a harder pitching meter (smaller green Perfect area)
Pitch Speed: + for faster pitches, - for slower pitches (both user and CPU)
CPU Pitcher Ball Rate: + for more balls thrown by CPU pitcher, - for less
User Pitcher Fatigue: + for quicker fatigue by user pitchers, - for slower
CPU Pitcher Fatigue: + for quicker fatigue by CPU pitchers, - for slower
User Pitch Control: + for better control by user pitchers, - for less
CPU Pitch Control: + for better control by CPU pitchers, - for less
Bullpen Fatigue Rate: + for quicker fatigue by pitchers in bullpen, - for less
Bullpen Fatigue Grace: + for more time between the pitcher that's warming up hitting 100% and beginning to lose stamina, - for less time (both user and CPU)
User Batting Contact: + for better contact by CPU batters, - for less
CPU Batting Contact: + for better contact by CPU batters, - for less
User Batting Power: + for more power by user batters, - for less
CPU Batting Power: + for more power by CPU batters, - for less
User Bunting Ability: + for easier bunts by user batters, - for harder
CPU Bunting Ability: + for easier bunts by CPU batters, - for harder
User Foul Ball Frequency: + for more user batter foul balls, - for less
CPU Foul Ball Frequency: + for more CPU batter foul balls, - for less
CPU Swing Frequency: + for more swings by CPU batters, - for less
User OF Speed (Manual): + for faster user outfielder speed after the
user takes control of them, - for slower
User OF Speed (MVP): + for faster user outfielder speed before the
user takes control of them, - for slower
CPU OF Speed: + for faster CPU outfielders, - for slower
User IF Speed (Manual): + for faster user infielder speed after the user takes control of them, - for slower
User IF Speed (MVP): + for faster user infielder speed before the user takes control of them, - for slower
CPU IF Speed: + for faster CPU infielders, - for slower
User Throw Speed: + for faster user throwing speed by fielders, - for less
CPU Throw Speed: + for faster CPU throwing speed by fielders, - for less
User Throw Accuracy: + for more accurate throws by user fielders, - for less
CPU Throw Accuracy: + for more accurate throws by CPU fielders, - for less
User Catch Errors: + for more errors by user fielders, - for less
CPU Catch Errors: + for more errors by CPU fielders, - for less
User Dive Difficulty: + for easier diving catches by user fielders (Big
Play Control), - for harder
CPU Catch Effort: + for more diving CPU catches, - for less
User Baserunning Speed: + for faster user baserunners, - for slower
CPU Baserunning Speed: + for faster CPU baserunners, - for slower
User Runner Aggression: + for more aggressive user baserunners, - for
less
CPU Runner Aggression: + for more aggressive CPU baserunners, - for less
User Runner Steal Speed: + for faster steal speed by user baserunners, - for less
CPU Runner Steal Speed: + for faster steal speed by CPU baserunners, - for less
User Runner Steal Delay: + for a longer delay between the CPU pitcher beginning his windup and the user baserunner beginning the steal, - for shorter
CPU Runner Steal Delay: + for a longer delay between the user pitcher beginning his windup and the CPU baserunner beginning the steal, - for shorter
CPU Steal Rate: + for more steals by CPU baserunners, - for less
Runner Injury Frequency: + for more injuries to baserunners (both user and CPU), - for less
Pitcher Injury Frequency: + for more injuries to pitchers (both user and CPU), - for less
Batter Injury Frequency: + for more injuries to batters (both user and CPU), - for less
Fielder Injury Frequency: + for more injuries to fielders (both user and CPU), - for less
Pitching MG Difficulty: + for an easier pitching mini-game, - for harder