Can the MB1 or MB2 be used with a COR52 to mount to an overhead stop jamb bracket?

Use the appropriate mounting bracket depending on your stop width.  

MB1 is for stop width over 2-1/2"
MB2 is for stop widths up to 2-1/2".

No special template is required for the overhead or the coordinator for this installation.  The overhead will be located lower than normal by 15/16".

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