If you take the Stockton example, why should he be 100% effective at guarding SGs? He's not going to be as effective guarding MJ, Drexler, T-Mac, Kobe, etc as he is Mo Cheeks, Isiah Thomas, & CP3. Then again, he shouldn't be penalized if the team he is defending is running 2 smaller Gs, like a Cheeks & Thomas combo... Stockton would have a more difficult time guarding Magic at PG, then he would Hornacek at SG.... There are many different example you can use with many different players. The SIM engine is highly flawed, but there doesn't really seem to be a real solution. The idea is to mimic real life.. In real life, it doesn't matter if I Thomas is playing PG or SG, Stockton- or CP3 for that matter- are going to defend him with the same effectiveness. But in RL, Stockton & CP3 wouldn't be 100% effective Guarding Lebron, even if Lebron is the PG. Mo Cheeks is a 90 defender at SG. Durant is 99% effective at SG. If Cheeks were Guarding KD in RL, KD would destroy him... But in WIS, Cheeks on KD is a very nice option... I don't have a solution. Not sure if there is one..