hmm, well my player had proficient and now strong stamina, so I guess that he'd support that theory
i will take a very close look into this, but from what I've seen so far stamina and GS are not related(perhaps they should, or maybe there just a tiny bit related), i just had a guy with proficient GS and his shape pretty much changed the same way, nothing particular about it.
I guess that aggressiveness is directly related to foul prone, however there should be some way to stop it(I do have such a foul prone player), I mean like a way that they are not telling us. For instance, It would be sad if there was a guy who is a great prospect and you virtually can't do anything with him because he is aggressive.
there may be a hidden dunking ability:D i had a 6'3 guard who dunked on everyone(he may have had IS 7 but i can't remember that well)