[MizunoJoe]

Huh, weird i would think pectoral action would be more like proud posture puffing the chest out instead of rolling the shoulders forward. I cant really pull the shoulders forward with the pectorals. How does the position of your shoulders at address effect your swing plane personally have you experimented with this?

You use the muscles over the shoulder blades to push the shoulders forward, and is done by players without much waist bend, who stand tall to the ball.