As Raikan said, all of these settings have a contribution in the outcome of each and every pass.
First of all, the AMC/L and R are operating higher up the pitch than your CMs.
Second, their mentality is important too: if both CMs and AMs have their mentality set to "normal", they will have a...
...regarding this, I've seen that in 3 of the tactics I've tried (4-2-2-2 Zenith by Quetesh, 4-2-3-1 Boo Ya! (Wizard) and your very own Complete Madness 433 New CM Settings), the passing for each player is set to "1", but during the game some players still play direct, long balls to their...