There is not a conflict between the 4041/4040XP EDA door closer and the GJ 100 or 410 overhead concealed series stops.
The exception is: the 4041/4040XP mounted on a drop plate, and the Glynn Johnson 100 is a hold open version. In this case, a clearance hole will need to be drilled by the installer into the drop plate for access to the hold open knob on the GJ100H.
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