They are made to guarantee realism, nothing else. If you think something is not realistic, please mention it and I will check it out, since I am trying to improve them all the time.
Here are the stats of my last game, both teams being rated 99 in the third season, me playing the Cavs.


Sliders for 12 min on Superstar
GLOBAL:
Game Speed: 50
Free Throw Difficulty: 45 matter of ability, just be honest to yourself if you want a fair game
Boundary Force Field: 60
Injury Frequency: 50 I may increase that by 2 or so
Fatigue Effect: 50
Charge/Block Foul Frequency: 50
Shooting Foul Frequency: 25
Reach-in Foul Frequency: 12
In-air Collision Foul Frequency: 80
USER:
User Steal Ability: 50
User Interception Ability: 35
User Shot Block Ability: 0
User Dunk/Lay-up Block Ability: 0
User Freestyle Effectiveness: 32
User Dunk vs. Lay-up Frequency: 5
User Substitution Frequency: 0 (50 for Auto-Subs)
User On-ball Defense Assist: 42
User Offensive Rebounding: 40
User Defensive Rebounding: 70
User Fakeout Discipline: 100
User Short Range Shooting: 50
User Medium Range Shooting: 50
User Long Range Shooting: 50
User Dunk Percentage: 50
User Lay-up Percentage: 85
User Adjusted Shot Percentage: 35
User On-ball Defense: 50
User Poor Release Shot Percent: 30
User Double-team Effectiveness: 70
User Pro Hop Effectiveness: 30
User Drop Step Effectiveness: 50
CPU:
CPU Steal Ability: 20
CPU Interception Ability: 20
CPU Shot Block Ability: 0
CPU Dunk/Lay-up Block Ability: 0
CPU Freestyle Effectiveness: 40
CPU Dunk Frequency: 15
CPU Substitution Frequency: 50
CPU Offensive Rebounding: 40
CPU Defensive Rebounding: 60
CPU Fakeout Discipline: 50
CPU Short Range Shooting: 47
CPU Medium Range Shooting: 48
CPU Long Range Shooting: 47
CPU Dunk Percentage: 50
CPU Lay-up Percentage: 85
CPU Adjusted Shot Percentage: 20
CPU Adjusted Shot Frequency: 50
CPU On-ball Physical Defense: 50
CPU Poor Release Shot Percent: 30
CPU Double-team Effectiveness: 50
CPU Pro Hop Effectiveness: 50
CPU Drop Step Effectiveness: 50