I didn't word it right; the throttle side meaning the spring on the rudder; I removed it completely; along with the lever and retainer; then bagged and tagged it in case I changed my mind.

I didn't care if it centered or not. You need to keep the springs on the right side so it wont slide when You power up, because that's harder to detect when You throttle up fast, in case You don't have the stick perfectly centered on that.

Adjusting the screw only does make a difference; just not enough for Me.