I feel I have to make this post in light of the fact that most of the suggestions, including mine, ask for stat increases... this post will be on stat reductions.
I think some there are some FG ratings that should be decreased. The biggest one would be Shaq who gets the majority of his shots from 8-10ft and closer to the basket.
Many guards should have lower FG ratings. For instance, Damon Stoudamire is shooting an atrocious 34% and was benched just for that. Two years before, 40% and 38%. Bowen a 75 FG rating? That is close to Vince Carter.
I could list a lot of other players but I won't because there is another factor here and that is the difficulty of the shots taken. For instance, Shaq has an extremely high FG% but we wouldn't call him one of the greatest shooters.

Even though his scoring range is limited I still don't think it should be that high.
On the other side of the coin, Bryant/McGrady might not shoot 50% but they take some very tough shots trying to shoulder the load for their teams. So it makes sense that in spite of their lower FG% their ratings should stay pretty high.
Any thoughts?