First off, if you want to edit your Throw Style you have to go to edit player then move to the middle tab once you are there. We have tested many throw styles and the one we keep coming back to is the Slinger 1. A lot of guys are set as a default of Generic 2 which is not the best.
It is like real life to where you want the passing animation to be short and simple and not like a Traditional 5 which makes him wind up like a dang softball player. Most Throw Styles are ridiculous and to in your face like my QB and I are having a dance-off.
Slinger 1 gets to the point, it is more of a flick instead of a big step and a long cock-back. Much less dancing around and drama with Slinger 1.