Turn Screw A clockwise to increase trigger weight.
Screw B adjusts second stage travel and trigger stop simultaneously. Turning it clockwise will increase travel and shorten after travel. The opposite is true for turning counter clockwise.
NOTE: Keep the setting range of Screw B within the operating limits of the system; excessive screwing prevents hammer release, and excessive unscrewing cancels second stage and lengthens the after travel to an unacceptable level.