Are you citing idle speed while in gear or in neutral (park)?
The current setting results in a smooth warm idle of ~500 when in gear, so I think the idle screw is in a good place. Is the cold idle of 1500 too high? I could lower it more by further inserting the cylinder of the AAV (didn't have to fully insert it to get it to close completely at temp after the rebuild) which would reduce the added cold idle air and the temperature for closure. Good to share common experiences!
BTW, Steve helped me to achieve stable hot idle by suggesting a series resistor to the coolant temp sensor for the ECU. Used to get so lean after heatsoaking that it would die while in gear at stoplights.