Ex, any chance of the screw working its way back in via vibration to the point that the trigger won't trip the sear?
Not likely. More likely to work itself out, than in. But, I’d sure follow GunGeek’s advice:
If the gun is for defense, make sure you Locktite the overtravel adjustment screw in place.
Blue 242 medium strength or pink 222 low strength Loctite would do it. Red would foreclose much possibly of later adjustment.
