Did a quick test of 'leave post' as 'pass out of post'. I left Bill Cartwright unchanged other than I raised his leave post to 100. I'm not gonna post the video as it got ugly quick(my MJ and Pippen are not big fans of 'running the play' right now).
Here is what I saw;
Did Cartwright seem more eager to pass out of the post?
Yes
Did he refuse to shoot from the post?
No
My conclusion(again based off very brief test):
It appears that the 'leave post' tendency does indeed increase the likely hood of a player passing back out to the perimeter once he receives a pass and is posted up.
However, this is where I get into my "Major/Minor tendency" theory, which is in a constant state of flux and has even evolved since my last post.
It is now my theory that, "any 'attack' tendency has the ability to override other tendencies."
All the shot locations(shot frequency), Drive the Lane, Attack, Post shot etc. are 'Major' tendencies.
With Post Shot at 50 Cartwright would still opt for a post shot over passing out. i.e. an 'attack'(major) tendency(post shot) with a setting of 50 was able to override a 'minor' tendency(leave post) with a 100 setting. Shot location was probably also a factor in the A.I.'s decision to shoot.
It is becoming clear to me that no matter what tendencies you give a player his first 'thought' is always to 'attack' in way or another, especially in there is not a play being run.
Lowering the CPU aggression is a fine line, where one step in the wrong direction can have drastic effects.
Since the A.I. seems hard coded to 'attack' if you take anyway too much of that ability you end with players that go into a "brain lock".
For example, if you lower inside shot tendencies across the board for players and set the coach and global sliders to zero you will players with the ball in front of a wide open basket
that just stand still and do nothing until another players interaction with them breaks them out of their "brain lock".
This seems to me more common with bigs than with guards.
They catch the ball in an area where they should be looking to shoot, but with their tendencies set against their attacking nature confusion sets in.
The A.I. player basically gets stuck in a thought loop along the lines of:
"I'm gonna shoot(hard coded attack), but I'm not supposed to(tendencies), but I really, really want to, but I really, really am not supposed to, but I really, really, really, want to shoot, etc.
In summation; 'leave post' will help to get players to pass back out of the post more often but must work in conjunction with other tendencies(namely shot location and post shot) to achieve the desired results.